So I fixed a thing...
I'm a huge fan of synthesizers, in particular "groove-boxes". I have one by a Swedish company called Teenage Engineering. The OP-Z is quite the groove-box with built in synths and samples and a sequencer. Full songs can be made on this nifty device! Alas it has some design flaws which my purchase succumbed to! The rotary dials are magentic and tend to pop out so I fixed them and documented the process!