unused parameter 'knob' [clang-diagnostic-unused-parameter,-warnings-as-errors]

member variable 'midi_knobs' has public visibility [cppcoreguidelines-non-private-member-variables-in-classes,-warnings-as-errors]

method 'ensureKnobReferencesCorrectVolume' can be made static [readability-convert-member-functions-to-static,-warnings-as-errors]

narrowing conversion from 'uint32_t' (aka 'unsigned int') to signed type 'int32_t' (aka 'int') is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions,-warnings-as-errors]