Percussion map and drum set problem

[DanielMuzMurray]

@derAbgang

Daniel has confirmed that it is expected

@dspreadbury

Percussion kits are not necessarily treated as a single instrument: each individual percussion instrument in the kit can be routed to a different endpoint if necessary.

This explains how instruments are handled in a kit. In fact, he also states that individual instruments within a kit can be routed differently if you like.