Chris at ohdratdigital offers his take on the Teenage Engineering OP-1 synthesizer:
The Teenage Engineering OP-1 is a synth, sampler, and virtual four track tape recorder all in a chassis that looks akin to a classic home synth instrument – the Casio VL Tone looks like it might have been a big design inspiration. In our epic review we go through our likes and dislikes about the instrument, show you some sounds, and show off a beat we made by performing it live.
The review includes a demo and some beatmaking, which kick in around 5:30. The audio is direct in, so it offers a preview of what the OP-1 is capable of.