the OT is amazing and quite cold, logical yet eccentric for want of a better word. Not in sound, but rather in workflow and the initial "getting to know" the instrument. Thinking about gain staging is vital. As is reading Merlin's mini-manual, economical yet illuminating, the way he approaches and interprets.
the Digitakt doesn't timestretch a loop.
but here's one reason why the Digitakt is the perfect companion for the OT: one shot samples sound 15 percent better on the Digitakt, this is due to the new breed programming and sample handling. And the OT already sounds clear, rich and amazing, so ... bonus.
Idea: sequence samples on the Digitakt and then realtime capture the loop onto the Octatrack and this is a perfect workflow matching catering to the best of both worlds.
also, if anyone says the idea of comparing the Digitakt and the Octatrack is like searching for similarities between apples and oranges, don't listen to them
Also to mention: there is no word in the English language that rhymes with orange.