Gut reaction...I'd lean towards the school of thought that the person may be hard to communicate with...even the best musician will have it rough if they havent taught themselves the right things...self taught is a pretty broad term...I'm self taught but definitely took the long road around to learn of theory..u think if I wont have formally been trained both in theory and the technical side I'd be a better player today...but glad that I've got unique aspects and approaches to pieces of music that a trained musician might not have thunk of...but idk, I had the luxury of having musicians around and learnt by jamming with more experienced players...so would I be self taught?..or informally trained?..who knows...just think it might be the long way to the same place.kinda