Tuning a drumset (playback)
It would seem appropriate to allow the tuning attributes of a drumset found in the Inspector to affect the playback pitch/tuning, even though it falls within the category of an unpitched instrument. Tuning a bass kick or cymbal up/down a semitone for instance--depending on the key of a piece or section--this can be very useful.
It appears to make no actual difference. . .