The following ranges are imposed by MIDI specifications.

_chan(1..16)

_legato(0..127)

_mod(0..16383) -- some devices may ignore the least significant byte

_modrate(0..16383) -- samples per second

_pan(0..127)

_pancontrol(0..127) -- index of MIDI controller

_panrate(0..16383) -- samples per second

_pitchbend(0..16383) if not preceded by _pitchrange(r), otherwise (-r..+r) with r in cents

_pitchrange(0..16383) -- this value is generally lower and depends on the synthesiser: "_pitchrange(r)" instructs BP2 that the range of the pitch bender on the current MIDI channel is (± r) cents. It sets the limit of the argument of _pitchrange() to the same value.

"_pitchrange(0)" indicates that subsequent "_pitchbend(x)" instructions take their argument x as the actual MIDI pitchbend position (range 0..16383) instead of a value expressed in cents.

_pitchrate(0..16383) -- samples per second

_press(0..127)

_pressrate(0..16383) -- samples per second

_staccato(0..127) -- in fact the value is clipped to the 0..100 range.

_transpose(-128..+127) -- semitones

_vel(0..127)

_volume(0..127)

_volumerate(0..16383) -- samples per second

_volumecontrol(0..127) -- index of MIDI controller