When you need to sync the S2400 to a non MIDI instrument (like turntables), tap tempo is a good tool to find the BPM of a track, but you may need to push forward or backward the tempo to perfect match, like with a turntable.
It could be done with keeping tempo pressed, then >>> or <<<
Or you could adjust the speed on your turntable for the easy fix - alternatively you can start / stop the track on the s2400 while adjusting the speed or buy the Octatrack that already have this feature
From a DJ point of view, you need two things to mix 2 records:
pitchcontrol
record/controller to quickly nudge back or forward to keep the records aligned.
So, it would make sense to me if the OP meant that TEMPO >>> <<< would be used to make micro skips to the clock (forward or back) possible. But that’s not what I read in his request.
nudge is about adjusting phase without changing the tempo itself. once you have the tempo itself more or less matched, you still may need to make some minor phase adjustments. Its very difficult to do this by changing the tempo and then changing it back it short spurts, its a moving target.
It is difficult at first but becomes natural with enough practice. Similar to the technique DJs use to “slingshot” the pitch fader so that you don’t have to touch the record platter while in the mix.
I think I get it. Your start times are off. So, you want to temporarily slow down or speed up the tempo to allow it to get the S2400 pattern in sync with a record. Yes?
Exactly. Momentarily increase/decrease the tempo by IDK maybe 5-10%. The longer you hold it the further you are able to bring the phase back in alignment with the turntable. When yo let go it snaps back to the set tempo. Wouldn’t need to do any time-stretching or pitch shifting.
It sounds difficult to implement that kind of function without any real-time effect on the audio. Imagine you have a drum break sample triggered each 2 bars or 4 bars. Even if you do micro adjustement of the tempo, you’d still need to wait until that element is retriggered to feel a change.
its not gonna work with live loops and long break samples which have to be played at their natural tempos, but if you have sequences of one shot drum sounds and/or midi notes it will work great for mixing with records.
Honestly you’re way better off learning how to ride the pitch on the turntable (so without touching the platter). Learn by mixing disco records with live drums. Once you learn how it will greatly improve your mixing.
Besides I can’t see this feature working properly on the s2400 especially when running external gear with midi clock for example.
Well, if it’s already working with Elektron gear, it can work with anything else, all MIDI related stuff can catch up after some beats, not a bid deal.