For what it’s worth, I’ve spent an hour or so now with the Octa, Tempest and Tanzbar, just building a very simple 16-step track with kicks, snares and closed hi-hats that vary on the decay (which I think is a sweet way to get a groove without actually switching between closed and open hi-hats).
Tempest and Tanzbar feel quite similar in temperament, more human to the groove - which isn’t necessarily always what you’re looking for, so there’s no value in that statement, just a way to describe what I felt.
I then took Tanzbar samples into the Octatrack and experimented with the swing, and came quite close, but not exactly there - again, using just my ear and my own vibe as a guide. There was nothing off or wrong about it, it just danced in a different way.
However, as someone else pointed out in this thread, it’s easy to be tricked by the actual values. Whereas the Tempest starts to go disco around 54%, the Octatrack remains pretty Kraftwerkian around those numbers and you have to reach closer to the 60% mark (I stayed at 58%) to get something similar. But around there, they’re pretty close. I mean they should be, the Octatrack can certainly swing as it is.
Where the difference becomes noticeable, is when you start to add parts together. Drums is one thing, but when you add more complexity to it, that’s when you push it. I threw in a base and a simple arpeggio in the Tempest as well. Feeding the Octa with similar sounds, the difference became greater. Doing the same with the Tanzbar’s basic synth features generated the same results.
So there’s something going on inside those boxes that doesn’t come as natural to the Octatrack. What we call swing might perhaps be identical in these machines. But then there’s something else beyond that, that doesn’t go into the swing algorithm but that still affects the groove, if it’s workflow, sound, even the difference between oscillator voices and samples, I don’t know - but it’s more to this than Linn’s formula for sure.