The Late Charlie Gillett used to do something on his radio show he called "Ping Pong". A guest would bring a stack of recordings and he would answer each selection with one of his own that related to it somehow. I was fortunate enough to play the game with Charlie once and came away with a list of records I had to track down and buy. Plus it was fun.
Nick Luscombe on BBC Radio 3's "Late Junction" has revived the practice in his own fashion. I will be his guest this coming Tuesday night from 10 to midnight; we've already recorded it so I can alert you to the fact that I played a live recording of Teddy Thompson singing a Kate McGarrigle song at Town Hall last May, a rare Zulu harmony track I just bought on vinyl via the internet, a wonderful 1930s calypso about how "of all the singers on the movie screen, the negroes are the best ever heard and seen" and a couple of the examples The Lion uses to make his point. And that's not all! I even play a few WPSEs that have made it through my exceedingly fine singer-songwriter filter.
For those of you out of range of the BBC, or who better things to do of a Tuesday night, you can hear it for 7 days thereafter via http://www.bbc.co.uk/radio3/latejunction.
WPSE = white people singing in English acc. Boyd