I can understand that but I also enjoy hearing the music without them. I frequently can hear parts I didn't notice before and appreciate the skills that much more. The opposite is true also, isolated vocals are sometimes surprising when you hear them without the music. Although that one was a rehearsal of the whole band, when he records a track on his own, usually with his wife now, he strives for an exact replication. He will use the same guitar, amp, and effects pedals used in the original studio recording and his track will be within 1 second of the album version.