CHANGELOG.md

History

• v2.7 'Rerezzed', 10th Sept, 2015
• v2.6 'Algorave', 30th July, 2015
• v2.5 'Craft', 13th April, 2015
• v2.4 'Defrost', 11th Feb, 2015
• v2.3 'Bitcrush', 28th Jan, 2015
• v2.2 'Slicer', 18th Dec, 2014
• v2.1 'Core', 21st Nov, 2014
• v2.0 'Phoenix', 2nd Sept, 2014

Version 2.7 - 'Rerezzed'

Thursday 10th September, 2015

This release brings a substantial change to the random number generator. This has the unfortunate side effect of breaking backwards compatibility. If you have been using rand, choose, shuffle and friends to create predictable patterns for your riffs, your code will produce different results in this release. Please let me apologise and say it's for a good cause. So what is this good cause? Well, you can now jump backwards and forwards through the random stream giving you way more creative control than before! The random stream is now also unified with the random stream on the synthesis server allowing you to sync behaviour between synths and code. Exciting times.

The sampler has also been super charged. We can now easily change the rate via MIDI note intervals with rpitch: and stretch the sample whilst preserving pitch via pitch_stretch: (although with variable results ;-)).

Finally you can now control the global mixer with set_mixer_control! for those full filter sweeps over the entire sound...

Have fun and happy live coding!

Breaking Changes

• Complete rewrite of random number system. This means if you've been combining calls to use_random_seed with randomisation to create predictable melodies/rhythms/timbral manipulations you will unfortunately get different results in v2.7. This change is to synchronise both the Ruby rand stream with the one in SuperCollider as well as enabling the reversal of calls to rand via rand_back.
• sync now causes the BPM to be inherited from the thread calling the matching cue. This may be disabled with the new bpm_sync: opt.
• rrand and rand now return 0 if called with 0.
• invert_chord now handles negative inversions in a more musically appropriate manner..

New Fns

• ratio_to_pitch which provides the inverse of pitch_to_ratio
• midi_notes - returns a ring of numbers (mapping the source ring/array through the fn note).
• rand_back - reverse the random stream and 'undo' calls to rand
• rand_skip - skip forward through the random stream.
• rand_reset- reset the random stream to the last seed.

GUI

• It is now possible to toggle the commenting of whole selections or individual lines with the shortcut M-/.
• Added Icelandic translation.

Synths & FX

• All synths learned the decay_level opt to allow the sustain phase to shift between two distinct values. The default value for decay_level is to mirror sustain_level: thus preserving current behaviour.
• play and synth have now learned the pitch: opt to match sample. This just increments or decrements the final note.
• sample now correctly validates opts.
• sample learned the pitch_stretch: opt which combines rate: modification (similar to beat_stretch: with pitch:. Attempts to maintain the pitch whilst simultaneously changing the rate. The underlying implementation is very basic and can easily destroy the sound.
• sample learned the rpitch: opt for simple rate pitch modulation. This modifies the rate to match the specified number of MIDI notes relative from the current pitch. For example, a rpitch: of 12 would double the rate.
• The unit of the FX :echo's decay: opt is now beats and the value is scaled with the BPM.

Examples

• Most examples have been tweaked to sound good with the new random generator.
• Tilburg has been replaced with Tilburg 2. Play it and get your Algorave on!

Improvements

• Auto-align code on Run.
• live_loop learned the seed: opt which will set the new thread with the specified seed prior to initial run.
• Add check to ensure BPM is a positive value.
• density has now been taught to handle values between 0 and 1 which will now stretch time for the specified block.
• Errors now no longer print out crazy print version of context object i.e. #SonicPiSpiderUser1:0x007fc82e1f79a0
• Both in_thread and live_loop have now learned the delay: opt which will delay the initial execution by the specified number of beats.
• Buffer and thread name are now printed on error.
• sample_duration now understands all the opts that you can pass to sample
• It is now possible to do basic arithmetic on symbols representing rests: :r + 3 returns :r (a rest plus any MIDI note shift is still a rest).

Bug Fixes

• Fixed crash when synth args were specified as Rationals.
• note_info now correctly handles octaves.
• Fix windows paste shortcut C-v.
• Teach invert_chord how to properly handle out of range index ranges.

Version 2.6 - 'Algorave'

Thursday 30th July, 2015 (view commits)

The laser beams sliced through the wafts of smoke as the subwoofer pumped bass deep into the bodies of the crowd. The atmosphere was ripe with a heady mix of synths and dancing. However something wasn't quite right in this nightclub. Projected in bright colours above the DJ booth was futuristic text, moving, dancing, flashing. This wasn't fancy visuals, it was merely a projection of Sonic Pi running on a Raspberry Pi. The occupant of the DJ booth wasn't spinning disks or playing MP3s, she was writing, editing and evaluating code. She was live coding and this was an Algorave.

This release is codenamed Algorave to celebrate that Sonic Pi is now ready to be performed within nightclubs as well as still being a fantastic tool for learning how to code creatively. There are many improvements as detailed below. However, let's just take a brief look at some of the most fun. Firstly we have the new error reporting system to make it easier to find and debug your errors. Syntax errors are now blue and runtime errors pink. We also have a new look and feel including a new dark mode for performing in dark places. We also have some fantastic new synths, FX and have even improved the standard synths. For example, sample now lets you stretch to match the beat with the beat_stretch: opt and change pitch with pitch:. The slicer FX now sports a fantastic deterministic probability: opt for creating and manipulating rhythmic structures with ease. Finally there's the new thread local tick/look system which will revolutionise the way you work with rings within live_loops. Of course there's so much more too!

Enjoy this release and happy Algoraving!

Breaking Changes

• The res: opt for all synths and FX now has range 0->1 rather than 1->0. This means that a higher res value results in more resonance. This will hopefully be more intuitive to beginners and less surprising for people with existing synth knowledge.
• The fn stop has been renamed to kill for killing specific synths. In its place a new fn stop has been added to stop a given thread or live_loop.
• invert_wave opts are now inverted. The default is now 0 which has the same behaviour as the old 1. This means that it's more intuitive to use the opt as to invert the current wave, you now specify: invert_wave: true, rather than invert_wave: false. This shouldn't affect any code which doesn't explicitly set the invert_wave: opt. Pieces which have explicit inversion need to swap all 0s for 1s and vice versa.
• The res: opt for rrand and rdist has been renamed to step: to avoid confusion with the resonance opt for cutoff filters.
• Rename pitch_ratio to pitch_to_ratio to keep in line with other similar fns such as midi_to_hz.

New Fns

• New thread-local (i.e. live_loop local) counter system via fns tick and look.
• New fn vector which creates a new kind of Array - an immutable vector (SPVector) which is now the default base class for all rings.
• New fns use_sample_defaults and with_sample_defaults which act similarly as their *_synth_defaults counterparts but for samples not synths.
• New fns use_tuning and with_tuning for exploring other tuning systems such as :just, :pythagorean, and :meantone.
• New fn invert_chord for chord inversions.
• New fn current_beat_duration for returning the duration of the current beat in seconds.
• New fn note_range for returning a range of notes between two notes with a pitches: opt for constraining the choice of filler notes.
• New fns scale_names and chord_names for returning a ring of all chords and scales.
• New example rerezzed - strongly influenced by Daft Punk's track derezzed.
• New example reich phase - a nice way of combining live_loops and tick to create sophisticated polyrhythms.
• New fns use_cue_logging and with_cue_logging for enabling and disabling the logging of cue messages.

GUI

• New visual look and feel including a new Dark Mode for live coding in night clubs.
• New preferences for hiding/showing aspects of the GUI such as the buttons, log, tabs etc.
• New preference for full screen mode.
• Improve error message reporting. Syntax errors are now made distinct from runtime errors with colour-coded messages. Also, the line number of the error is much more visible, and the line of the error is highlighted with an arrow in the left-hand margin.
• Workspaces are now named buffers. This is a smaller word which works better on lower res screens and is also a lovely term used by a number of wonderful programming editors such as Emacs.
• Print friendly messages to the log on boot.
• Add pref option to check for updates now.

Synths & FX

• New FX - krush for krushing the sound.
• New FX - panslicer similar to slicer and wobble but modulates the stereo panning of the audio.
• New synth subpulse for a full range pulse with extra bass.
• New synth blade - a moody Blade Runner-esque synth violin
• New synth piano - a basic piano emulation. Only capable of whole notes.
• FXs slicer and wobble now have a wonderful new probability: opt which will only slice on (or off depending on wave inversion) with the specified probability. The behaviour is deterministic, so repeated calls with the same seed: and probability: opts will result in the same behaviour. Great for adding interesting rhythmic variation to sound.
• FXs slicer and wobble now have smoothing opts for even more control over the resulting wave form.
• Teach sample the opt beat_stretch: for modifying the rate of the sample to make sure the duration of the sample is n beats long (with respect to the current bpm). Note: stretching the beat does change the pitch.
• Teach sample the opt pitch to enable pitch shifting on any sample.
• FX flanger's feedback mixing is now more fair and is less likely to hike up the amplitude.

Improvements

• Teach note_info to also handle a number as its param.
• Teach factor? to handle division by 0.
• Teach load_sample to throw exception when passed an empty path.
• Now throws an exception when you attempt to create an empty ring.
• Rings are now immutable (in the Clojure sense) which means they can be safely passed to multiple threads/live_loops without any issues.
• Teach use_sample_bpm the opt num_beats: to indicate that a given sample consists of a specific number of beats.
• Teach comment and uncomment to require blocks.
• Teach synth chord groups to allow their notes to be controlled individually to allow transitions between chords.
• Throw nicer exception when unable to normalise synth args
• Teach chord the new opt invert: as a shortcut to the new invert_chord fn.
• Teach sample_duration about the opts start: and finish: and envelope opts such as attack: and release:. This allows you to replace any call to sample with sample_duration to get the exact duration of that call.
• Teach chord the opt num_octaves to enable the easy creation of arpeggios.
• It is now possible to set the block type in the Minecraft API.

Bug Fixes

• Fix bug in with_sample_pack_as to now correctly accept a block.
• mc_surface_teleport no longer throws an error.
• Array#shuffle now works correctly with the random seeds for deterministic behaviour.
• Fix broken behaviour with multiple nested calls to *_sample_bpm.

Version 2.5 - 'Craft'

Monday 13th April, 2015 (view commits)

This release comes with support for Minecraft: Pi Edition installed on the Raspberry Pi. You can now create music with Minecraft visuals or even code up a synth score in Minecraft blocks and read and play the score from Sonic Pi! Another exciting aspect of this release is much improved editor functionality for navigating around and manipulating code via keyboard shortcuts. This means that live coding just got a lot more fun. The keyboard shortcuts are based on the standard shortcuts provided by GNU Emacs - the oldest and most powerful text editor in use by wizard programmers today.

Breaking Changes

• invert_wave now defaults to 1 everywhere. I found I always inverted the wave every time I used a synth/fx where wave inversion was key. This seemed like such a better default I've broken compatibility for it. Apologies if this has affected you.
• The flanger FX now defaults the optional arg stereo_invert_wave to 1.
• Renamed FX ring to ring_mod to reduce the potential for confusion with the ring datastructure.
• Tab now indents current line or selection rather than inserting a useless tab character.

New

• Support for programming Minecraft Pi Edition.
• sync now accepts multiple cue ids and will sync on the first matching id.
• New fn pitch_ratio for converting a midi note to a frequency ratio. Useful for tuning samples.
• New fn line for creating a line from start to finish with a specific number of slices.
• New fn spark for displaying lists of numbers in a fancy text-graph (▁▃▅▇) in the log.
• On stop, amplitude of output slides down over 1s to silence for a smoother transition.
• sample_duration now scales result based on current BPM.
• range now accepts optional args: inclusive: and step:.

GUI

• German translation of GUI and tutorial. Simply open Sonic Pi with a machine with a German localisation setting.
• Display GUI fully maximised when opening for first ever time.
• Workspace indexing now starts at 0 to match standard programming indexes.
• New shortcuts - M-< and M-> for switching workspaces.
• Many new Emacs-based code navigation and editing shortcuts. See the shortcut cheatsheet in the built-in tutorial for more information.
• Increase height of doc and error panes.
• Improve error pane colour scheme.
• Auto-align now trims whitespace from start and end of buffer.
• Add preference toggle to hide/show line numbers.
• Documentation now supports semantic formatting and highlighting.
• Docsystem tabs are now positioned at the bottom for better navigation.
• New preference to hide/show line numbers in editor.

Synths & FX

• New FX - :pitch_shift

Bug Fixes

• Fix OSC lib to properly encode multibyte chars such as UTF8
• Fix sporadic issue on some platforms when trigging percussive sounds within a reverb FX caused a serious audio overload.
• Add missing fn metadata for *_sample_bpm
• Fix synth metadata for FX :bpf.
• Fix arg metadata for use_sample_pack_as
• Rings now pretty print themselves as (ring 1, 2, 3) rather than [1, 2, 3].
• C-k keyboard shortcut now copies text into the clipboard.
• Scales and chords now return actual rings rather than ring-like things.
• Improve Ring Mod FX arguments
• Exceptions created within with_fx are now raised correctly.

Version 2.4 - 'Defrost'

Wednesday 11th February, 2015 (view commits)

A quick release following v2.3 to address an issue with the GUI freezing on specific CPUs. However, although this release has had a small development cycle, it ships with three fantastic features. Firstly we now have the spread fn which provides an amazing way to create interesting rhythms with very little code. Secondly we can now use cutoff: on any sample massively increasing their timbral range and finally we have three exciting new synths for you to play with. Have fun!

Breaking Changes

• Unfortunately 5 pre-release synths accidentally slipped into v2.3. Three of them have been polished up and are in this release (one with major changes including a name change). However, the other two have been removed.

New

• New fn spread for creating rings of Euclidean distributions. Great for quickly creating interesting rhythms.
• GUI now automatically appends a : to the FX opt autocomplete list
• Synths and FX now raise an exception if any of their non-modulatable opts are modulated. This is disabled when the pref 'check synth args' is unchecked.
• GUI now renders pretty UTF-8 └─ ├─ characters when printing in the log on RP.
• Improve docstrings for sample player.

Synths & FX

• New Synth :dark_ambience, an ambient bass trying to escape the darkness.
• New Synth :hollow, a hollow breathy sound.
• New Synth :growl, a deep rumbling growl.
• Sampler synths now sport built-in rlpf and normaliser FX. These are disabled by default (i.e. won't affect sound of the sample) and can by enabled via the new cutoff:, res: and norm: opts.

Bug Fixes

• Fix insanely obscure bug which caused the GUI to freeze on certain platforms (32 bit Windows and RP2 with 2G/2G kernel).
• Remove DC Bias offset from Prophet synth (see http://en.wikipedia.org/wiki/DC_bias)

Version 2.3 - 'Bitcrush'

Wednesday 28th January, 2015 (view commits)

Breaking Changes

• Playing chords with the fn chord now divides the amplitude of each resulting synth by the number of notes in the chord. This ensures the resulting amplitude isn't excessive and is normalised.
• Chords now evaluate their args once and those args are used for all synth triggers. This means random values are only generated once and are similar across all notes in the chord. Previous behaviour can be obtained by calling play multiple times with no interleaved sleeps.
• Ensure each new thread's random number generator is unique yet seeded in a deterministic manner. This stops random vals across at from being identical.
• range is now exclusive: (range 1, 5) #=> (ring 1, 2, 3, 4)

New

• New fn density for compressing and repeating time Dr Who style. For example, wrapping some code with a call to density of 2 will double the bpm for that block as well as repeating it twice. This ensures the block takes the same amount of time to execute while doing double the work.
• New fns with_bpm_mul and use_bpm_mul which will multiply the current bpm by a specified amount. Useful for slowing down and speeding up the execution of a specific thread or live_loop.
• New fn rdist - generate a random number with a centred distribution
• New examples: square skit, shufflit and tilburg

Improvements

• Teach control to ignore nil nodes i.e. control nil, amp: 3 will do nothing.
• Teach Float#times to yield a float to the block. For example, 3.4.times {|v| puts v} will yield 0.0, 1.0 and 2.0.
• Synth, Sample and FX args now handle bools and nil correctly. true resolves to 1.0 and false, nil resolve to 0.0. This allows you to write code such as: play :e3, invert_wave: true
• Teach at to handle varying block arities differently. See docs for more detail. Original behaviour is preserved and only extended.
• App now checks for updates (at most once every 2 weeks). This may be disabled in the prefs.
• Teach :reverb FX to extend its kill delay time with larger room sizes to reduce the chance of clipping.

Synths & FX

• New FX bitcrusher - for crunching and destroying those hi-fi sounds.
• New FX flanger - a classic swhooshing effect typically used with vocals and guitars.
• New FX ring - ring modulation for that friendly Dalek sound
• New FX bpf - a band pass filter
• New FX rbpf - a resonant band pass filter
• New FX nbpf - a normalised band pass filter
• New FX nrbpf - a normalised resonant band pass filter

New Samples

• perc_snap - a finger snap
• perc_snap2 - another finger snap
• bd_ada - a bass drum
• guit_em9 - a lovely guitar arpeggio over Em9

Bug Fixes

• Namespace live_loop fn and thread names to stop them clashing with standard user defined threads and fns.
• GUI no longer crashes when you start a line with a symbol.
• with_fx now returns the result of the block
• Kill zombie scsynth servers on startup for better crash recovery.
• Handle paths with UTF8 characters gracefully
• Force sample rate for output and input to 44k on OS X. This stops scsynth from crashing when output and input sample rates are different.

Version 2.2 - 'Slicer'

Thursday 18th December, 2014 (view commits)

This release brings a number of nice enhancements. However the main feature is the accurate timing for triggering FX. This means you can now reliably use FX for accurate rhythmic purposes such as wobbling, slicing and echoes.

Breaking Changes

• use_sample_pack_as now uses a double underscore __ as a separator between the user-specified alias and the sample name.

API Changes

• Teach synth args to take prefixed maps: play 50, {amp: 0.5}, {release: 2}, amp: 2
• Don't round Floats when user specifically prints them to log with puts
• with_fx FX synths are now triggered using virtual time rather than real time. This means that FX can now be used for rhythmical purposes.
• Work on new RingArray datastructure. This is essentially an array that wraps its indexes so you can use indexes larger than the array size.
• New fn ring - (ring 1, 2, 3) creates a new ring array.
• New fn knit - (knit :a1, 2, :c1, 1) returns (ring :a1, :a1, :c1)
• New fn bools - (bools 1, 0, 1) returns (ring true, false, true)
• New fn range - (range 70, 100, 10) returns (ring 70, 80, 90, 100)
• New fn sample_loaded? - to detect whether a specific sample has been loaded

Synths & FX

• Fixed regression in :tb303 synth - sound is reverted to v2.0 behaviour
• New Synth - :square - Pure square wave

GUI

• Help system now autodocks on close
• Preferences are now remembered across sessions
• On Raspberry Pi, previous volume and audio output options are forced on boot.

New Samples

• bd_tek - Bass drum

Bug fixes

• one_in now returns false if num is < 1
• Ensure live_loop's no-sleep detector works within nested with_fx blocks
• chord now returns a ring.

Version 2.1.1

Tuesday 25th November, 2014 (view commits)

• Windows version no longer needs special firewall exceptions to run
• Added license information to info window
• Minor grammar and spelling tweaks to tutorial

Version 2.1 - 'Core'

Friday 21st November, 2014 (view commits)

The focus of release is very much on technical improvements, efficiency and general polish.

The most obvious and exciting change is the introduction of the live_loop which will change the way you work with Sonic Pi. For more information on live_loop take a look at the new section in the tutorial. Another very exciting development is that v2.1 marks the official support for Windows thanks to the excellent work by Jeremy Weatherford. Finally, this release is also the first release where Sonic Pi has a Core Team of developers. Please give a warm welcome to Xavier Riley, Jeremy Weatherford and Joseph Wilk.

API Changes

• New fn live_loop - A loop for live coding
• New fn inc - increment
• New fn dec - decrement
• New fn quantise - quantise a value to resolution
• New fn factor? - Factor test
• New fn at - Run a block at the given times
• New fn degree - for resolving a note in a scale by degree such as :i, :iv
• New fn chord_degree - Construct chords based on scale degrees
• New TL fn use_sample_bpm - for changing the BPM based on a sample's duration
• New fn rest? - Determine if note or args is a rest
• New fn vt - Get virtual time
• New fn set_control_delta! - Set control delta globally
• wait now handles both sleep and sync functionality
• Allow first arg to play to be a proc or lambda. In which case simple call it and use the result as the note
• Teach play to accept a single map argument (in which case it will extract :note key out if it exists.
• Fns play and synth now treat 'notes' nil, :r and :rest as rests and don't trigger any synths.

GUI Modifications

• Updated and improved tutorial
• Much improved autocompletion
• Add HPF, LPF, mono forcer and stereo swapping preferences to new studio section for use when performing with Sonic Pi through an external PA.
• Shortcuts overhauled - now supports basic Emacs-style Ctrl-* navigation.
• Shortcuts Alt-[ and Alt-] now cycle through workspaces
• Shortcuts now work when toolbar is hidden
• Font sizes for individual workspaces are now stored between sessions
• Ctl-Mouse-wheel zooms font on Windows
• Links are now clickable (opening external browser)
• Entries in docsystem's synth arg table are now clickable and will take focus down to arg documentation
• Stop users accidentally clearing entire workspace if they type quickly after hitting run
• Hitting F1 or C-i over a function name now opens up the doc system at the relevant place

Bugs/Improvements

• Reworked examples.
• Much improved efficiency in many areas - especially for Raspberry Pi.
• Avoid occasional clicking sound when stopping runs
• Note Cb is now correctly resolved to be a semitone lower than C
• Non RP systems now start with more audio busses (1024)
• Array#sample and Array#shuffle are now correctly seeded with thread local random generator
• Log files are now placed into ~/.sonic-pi/log
• Chords and scales now wrap around when accessed from indexes outside of their range.
• rand_i and rrand_i now correctly return integers rather than floats
• rrand arguments now correctly handle a range of 0 (i.e. min == max)
• Line offset in error messages is now correct
• When saving files on Windows, CRLF line endings are used
• Stop users defining functions with same name as core API fns

Synths, Samples & FX

• New samples (bass drums, snares and loops)
• Allow mod_range: opt to have negative values (for oscillating with lower notes)
• Change slide mechanism to default to linear sliding with support for changing the curve type. All modifiable args now have corresponding _slide_shape and _slide_curve args.
• Improve TB303 synth - now supports separate cutoff ADSR envelopes. New opts:
  • cutoff_attack:,
  • cutoff_sustain:,
  • cutoff_decay:,
  • cutoff_release:,
  • cutoff_min_slide:,
  • cutoff_attack_level:,
  • cutoff_sustain_level:,
  • cutoff_env_curve:

Version 2.0.1

Tuesday 9th September, 2014 (view commits)

• Fix recording functionality
• Improve documentation content and layout
• Close off OSC server from external clients
• Add History, Contributors and Community pages to info window
• Improve startup speed on OS X
• Re-work and add to shortcuts for key actions:
  • on RP they are all alt-* prefixed
  • on OS X they are all cmd-* prefixed
• Improve highlighting of log messages (cue/sync messages are more clearly highlighted)
• Log now communicates when a run has completed executing
• Fix bug encountered when stopping threads in super fast loops (stopped comms with server)

Version 2.0 - 'Phoenix'

Tuesday 2nd September, 2014 (view commits)

• Complete rewrite since v1.0
• Support for Live Coding - redefining behaviour whilst music is playing
• New timing system - timing now guaranteed to be accurate
• Many new synths
• New chainable studio FX system
• Support for sample playback
• Inclusion of over 70 CC0 licensed samples from http://freesound.org
• Support for controlling and modifying synth, fx and sample playback arguments after they have been triggered
• Completely re-designed GUI
• Help system with full documentation, tutorial and many examples
• Record functionality (for recording performances/pieces)
• Support for controlling system audio settings on RP