Thanks, I appreciate that.
The 540 has two separate ADSRs on sliders, which is what I wanted (rather than knobs) and each has two positive and one inverted out. I thought that would probably be enough to be getting on with to begin with, given that I’m not really expecting to be making more than one sound at a time with it (though it easily could, obviously). Plus like you say the 510 is normalled to use the filter envelope as the VCA envelope which can free up the others in a a lot of cases. I’ll see how it goes when I’ve got it all together. The other thing that’s a possibility is reprogramming one of the two Aira modular effects I have to be ADSR generators and/or LFOs and/or all sorts of other stuff depending on what I’m trying to achieve.
I’m generally good for hardware effects but Maths is definitely something I’d like to have, it just takes up a fair chunk of an 84hp rack. My intention is to use a Roland SYR-E84 case for this and stack another one on top if I really get into it, at which point I’ll be looking a lot more into mults, logic stuff, granular and rhythmic things, maybe effects. But that’s a way off (hopefully).