Question: Out of the two musicians, Adam Shore (Warrant) and Gary Lightbody (Snow Patrol), who was the multi-instrumentalist, in addition to their vocal talents? 
Sentence (from "Adam Shore"): He also co-wrote the Warrant song "Thin Disguise" (which was originally a B-side) with his replacement Jani Lane, with Lane ending up on the final recording.
Relevant evidence: No