I got a Keystep Pro today, and I was delighted at first. It seems to be what I've been waiting for.
I was running sequences that were playing on my Pro-1, Minibrue 2 and Minitaur. It worked great.
But as soon as I introduced drums, I ran into problems. I am not using the Keystep's drum track here, I am trying to sync an external drum machine to it. I couldn't get it to send clock at a sensible rate to my Volca Sample (I tried all the clock division settings), so I updated the Keystep Pro's firmware to the latest version. I still couldn't get it working.
So I tried MIDI DIN. It didn't start the Volca's sequencer reliably.
So I decided to try with my Drumbrute Impact. Same issue as with the Volca over MIDI DIN. It starts when I hit start on the Keystep Pro. But it starts a beat behind, or sometimes very slightly behind. There seems to be no logic to it - it doesn't start in sync, but the amount it's out of sync varies each time I start the Keystep sequence.
So I tried the second MIDI output of the Keystep Pro, so there's a direct MIDI DIN cable between the KP and the Drumbrute. Same issue.
If I start the Drumbrute or Volca manually, they stay in sync with the Keystep. But I don't want to do that. The whole point of this set up is to have everything start in sync when I hit play. 100% of the time they fail to start on the beat when I press play.
So I tried with the Minibrute 2 sequencer. Same issue. It doesn't trigger the start of the sequence on the beat.
So the Keystep Pro with the latest firmware seems incapable of starting external sequencers on the beat. This is more than a bit rubbish.
I've also experienced other glitchiness when I'm sequencing. Steps suddenly looping for no apparent reason, the metronome going wild are just two examples. I couldn't rely on this to improvise a piece of music or play live.
And I can't sync any external drum machines or sequencers, which is the whole reason I bought the damned thing.
This is more than a bit rubbish, to put it very politely. None of the gushing reviews from Youtubers mention that it doesn't actually work.