Couldn't agree more with that, Sol. We had a singer duo at the Memory Café last Friday...Let me see, what did we have...the aforementioned Amarillo, some Everly Brothers, Monkees, Elvis, Buddy Holly, Showaddywaddy, Cliff, Bill Haley, Dusty, Helen Shapiro... And just the ould warhorses by all of that lot, no obscure album tracks, damp squibs or B-sides! All good, and it doesn't pay to be too prescriptive, though maybe not any hard punk...