That can you also do in LMMS. We call it the Base-note. Default it is A4, and denoted be the small marker on the keyboard of the instrument-preset UI. Read more about that feature here: https://docs.lmms.io/user-manual/3-navigating-lmms/3.6#3-5-3-1-base-note Real micro-tonal setups would however be...

I found a workaround - ZynAddSub allows you to move which key is the center "A" key in the scale menu.

I'm trying to produce microtonal tracks using ZynAddSub, and a difficulty I've found is that the piano roll is of insufficient size to support the amount of octaves I need. When I divide an octave into 31 instead of 12, octaves become a lot wider on the keyboard, and I can only access like 3 octaves...