UVI just provided an update to their Falcon plugin (a richly featured soft synth with comprehensive effects and MIDI generating/sequencing capability), which now has a MIDI capture (record, drag&drop) feature, complementary to the myriads of different (optionally aleatoric sequencers)
This video link is timestamped to the part where Venus Theory shows the MIDI capture feature, but before that there is lots of walkthrough of the sequencing options, some with a scale quantizer.
If UVI provides live MIDI out from the Falcon plugin, that will open a world of interesting MIDI pattern generation, along our discussion around what makes for an useful arpeggiators.
But I think Falcon is a long way from getting anywhere near Scaler on User Experience. Part of that is because the MIDI sequencer/event filters are just a subset of a much larger instrument (at $350 cost) that Falcon is versus a more focused and affordable Scaler.
Falcon is powerful but in my experience using separate plugins a better result. The new additions are cool but the scripts always feel a bit clunky in practice.
And its nothing like scaler at all as a tool.
It a synth I might spend the whole evening on one patch & then realise the wasn’t really that useful.
If you like Midi pattern generation to use with scaler Arturia pigments has midi output & the arpeggiator pretty decent. And M4L is pretty much endless fun & hard to beat in that regard.