I booted it up today and it was very hard to figure out how to use it. I may be wrong about details because I didn't read a manual so I'm not entirely sure how to use it.
It seems that all edits are done using menu commands and not by directly editing the data using the keyboard. It has a steep learning curve and inefficient editing. Lots of it is written in BASIC. I guess this could work if you basically record realtime and playback with minimal editing. It isn't even in the same universe as KCS on Amiga, but it was released fairly early in the C128 life cycle on the other hand.
Thanks for sharing! Personally I'm most interesting in converting raw audio (.WAV/.MP3) files into .MIDI files, but also converting between MIDI and SID files. This seems to be (after reading review... thanks bjonte) to be for creating new/raw MIDI files. It is a shame the user manual isn't available yet (I checked Bombjack today and no upload yet).
Can anyone recommend a SID<->MIDI converter? I've examined hex dumps of both file formats and have become convinced such a thing is possible. Of course losses should be expected in the MIDI->SID path. I could try such a program myself, but I'm not a musician so it wouldn't be pretty...