More advanced than keystep pro?... uh, ok.

Advanced may not be the right word. 🤔 One limitation is the lack of channels/outputs when it comes to complete arrangements. Four channels with only one mod output per channel isn't quite enough for my case. Another limitation is that it's difficult to get an overview of the arrangement. Also, while patterns can be sequenced together, I don't think it's convenient to program entire songs on it. As things stand right now, I think the DAW is the best option for me when I get to this stage.

My thinking is that things like Keystep Pro, O-Ctrl and Marbles can inspire me and help me get started. The DAW can be a bit uninspiring to me, but when I get to the point where I'm hit with the limitations in Keystep Pro, I'm hoping it won't matter. 😊

I do have some experience with NerdSeq and I love it, because it makes a kind of Metal Gear Solid retro feeling to me.
It is capable of playing back loads of programmed information and modulation [...]
But NerdSeq really needs all of my patience, and it feels a bit like programming - I'm also attaching an external display and a computer-keyboard with the expander, haha!
I don't work with external midi-gear but there is a limited option for micro timings in Nerdseq => it affects a whole step in the pattern, not only one note.

Maybe this information helps you.

BTW: whats your goal with the overall rack? Recording, live gigs, improvisation, playing with band...?

Thank you, it sure does!

I was eyeing that display and keyboard expander as well. 😊

My goal is to record songs that are more... organic than retro. Ambient soundscapes, but probably IDM and glitchy stuff as well. In that context, I'm suspecting NerdSEQ might be a bit too rigid.