Transposition: Where?
I've searched around regarding how Logic Pro X handles transposition, and I've learned a bit, but some things are still a little fuzzy.
Please bear with me; I'll do my best to keep this short, but I can't really ask this in a few sentences...
I can think of three places where a transposition could be applied:
- Upon receiving a note from a MIDI input.
- Upon sending a note to a MIDI output. I gather that's what the transposition in the track inspector does.
- In the score editor (maybe in the piano roll as well).
These transpositions would most obviously (to me at least) be associated with the particular track.
For example, suppose I have a bass guitar sound, and a piccolo sound, on my 5-octave MIDI keyboard: It's probably not reasonable for the C4 key (in the middle of the keyboard) on those two instruments to play the same pitch. So, the C4 key on the piccolo sound is perhaps more likely to play a C5 or C6, whereas the C4 key on the bass-guitar sound is more likely to play a C2, say.
That being the case, I'd want Logic to be able to apply a transposition upon receiving a C4, based upon which track I'm recording, to put it at the correct absolute pitch as seen within Logic. If I'm recording the bass-guitar track, it would perhaps transpose a received C4 down to a C2.
Conversely, I'd want Logic to be able to reverse/revert that transposition back to a C4 upon sending a note out MIDI.
And then, strictly within Logic, and especially as tied to the score editor/viewer, I'd want to be able to apply a transposition strictly to how it's displayed. For example, if I have an alto-sax part, it would be good to be able to switch off between notated pitch and concert pitch a major 6th below that.
So, my question is whether there are ways to specify transposition upon MIDI input, and display in the score editor/viewer? (I gather that the transposition in the track inspector specifies MIDI-output transposition.)
Thanks for reading!
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