By the time he became bass player for the Country Gentlemen, Bill Yates had already worked with Red Allen, Bill Monroe and Jimmy Martin.  Bill died last week, but he left some wonderful music for us.  Check out this nifty clip from Bluegrass Country Soul, Albert Ihde's great documentary covering a three-day festival in 1971.          -- Charlie Waller, guitar - Bill Emerson, banjo - Doyle Lawson, mando - Bill Yates, bass.