Gentle Giant was formed in 1970 when the Shulman brothers teamed up with two other multi-instrumentalists, Gary Green (guitar, mandolin, recorder etc.) and Kerry Minnear (keyboards, vibraphone, cello, etc.), plus drummer Martin Smith, who had previously drummed for Simon Dupree and the Big Sound. (wikipedia.org)
Let 'Em Roll stands among the finest with Patton adding vibraphonist Bobby Hutcherson to a standard organ trio line-up with guitarist Grant Green and drummer Otis Finch. (spillersrecords.uk)