Microtuning have been discussed here and on the old forum. As much as I’d love to see it, it’s pretty unlikely to happen.
I make music in just intonation and have found that even using software and hardware made specifically for microtonal music, it’s exceedingly challenging to get various instruments microtuned to the same scales. If using pitch bends, timbres needs to be monophonic in order for it to work. on top of that, they need to be set to the right pitch bend range (not always adjustable on every instrument)… and if attempting polyphonic microtuning, things get much more complicated. usually involves sysex MTS or multichannel pitchbending of a multitimbral instrument. The Pyramid doesn’t do sysex, so that’s out, and the multitimbral thing is not an optimal way of doing things as it eats up midi channels (channel per voice) and rarely works properly from my experience.
If you need a sequencer that can send MTS (which only a few synths use) then perhaps hunt down a Circlon (there’s one on reverb right now for $3400 USD )
I’d suggest using instruments that support microtuning locally, and/or a separate tuning brain like the H-Pi TBX1 / TBX2.
Yeah, it’s frustrating to have to go through and change tunings on each synth when you want to switch tunings (although some can do it through midi cc, such as the Preenfm2 - which by the way is a wonderful synth for microtonal music) but it’s been a lot more fun than wrestling with a bunch of synths that are stuck in equal temperament.
I too would love to see hermode tuning, but again… it’s highly unlikely to happen on the pyramid. The amount of programming to get that to work with different synths… no simple feat. Aside from the Access synths, I’m not aware of other hardware that intelligently tunes chords in real time. Only a handful of software instruments are clever enough to do hermode tuning (logic and alt-tuner)
I realize you’re probably not interested in a software solution, but Alt-Tuner is likely the closest thing to what you’re looking for… if you want to get into some weird microtonal, flexible tunings without waiting years for hardware to materialize, it might be what you’re looking for. You could perhaps run it on a tiny computer and hook it up to the pyramid.
if you do come across hardware that can do this, please report back!