It's not new Mike - this crabby old bugger can remember it in the mid sixties at a well respected "traditional" club not a million miles away. What hacks me off a lot more (if possible) is when you've put a lot of homework into a song, its sources and its performance and your efforts are rewarded with some variant of "hasn't XYZ recorded that?". Doubt not the value of your efforts - nor yet doubt the capacity of duckwits to irritate you; it goes with the hallowed status of bard!