[TaupeRanger]

What you've just described after "Nope!" is exactly what I mentioned in my post, which is now downvoted I guess. Many many sequencers let you ask for "4 5 6" and adjust for any scale you want. What are you claiming is new here?

[mpdehaan2]

Those sequencers do not include Ableton, the Monomachine, Bitwig, Logic, or any that I have experience with. They all use force to scale mechanics that make accidentals impossible.

I suspect Numerology might. I've only seen semitone transpose in most arp implementations, never the ability to work within scale notes. I've never seen an arp that can walk across chords and probabilistically invert them.

The Cirklon had a lot of great ideas including some things like random step transpositions and variables - but generally, in DAWs, it's not something you have access to. Nobody's even tried to get something like Electron parameter locks going, which is a shame, because they are awesome.

I don't have enough karma or levels or superpowers to down vote anyone. I have no idea how this website works in that regard.