Hi @vindov
That drum notation is broadly right for a sort of basic ‘five piece’ rock drum kit you might buy from a shop, but in percussion there are so many variations that it rarely maps perfectly. Often a score will have it’s own notation for a particular piece - e.g. the place for ‘rock snare drum’ means something else, a timbale for instance.
I think the kit in SPi just has Hi Tom and Lo Tom, but you can emulate a nice floor tom, lower in pitch, by beatstreching out the Lo Tom.
The cymbal sounds are a bit unclear as to what they are, but again you can use the standard ones and manipulate them with the sample parameters to do quite a lot - e.g. stretch one out to be roughly like a crash, or shorter and higher pitch for a splash. There’s not really a recognisable ride sound IMO.
I don’t think Spi is trying to be an authentic acoustic drum kit. For that you need a sampler of some kind with lots of samples taken at different volumes. Although that can be driven from SPi. If you want some more info on that, let me know.
BTW there are a lot more interesting electronic drum sounds in the samples e.g. bigger snare drum sounds and kick drums under :sd_ and :bd_
Hope that helps.