object requests [bpm detect, signal phase, mid remover]

[8bit-meiko]

i don't know how to audio lib exactly works, so i'll make a request with objects i'd like to see.

1: bpm detector (for wav files/ synth beat tracking)
a pdf explaining the algorythms: http://www.music.mcgill.ca/~hockman/coursework/MUMT_614/scheirer/614_scheirer_presentation.pdf

2: mid remover (removing the mono signal from a stereo source, and keeping both left-right instead in adding them to one channel)

3: phase of a signal (preferably to be set per 45 degrees)
if this is too hard, i'd at least like a 180 degree phase option (aka inverting the signal)

example use cases:
1 can be used for a complete bare bones dj controller.
2 and 3 can be used for more advanced surround sound decoding.

please tell me what you think of these ideas and if they will be implemented, and when(?).