David Grisman is normally associated with the bluegrass wing of country music, but his music owes almost as much to jazz as it does to traditional American folk influences. Because he couldn't think of what to call his unique, highly intricate, harmonically advanced hybrid of acoustic bluegrass, folk, and jazz without leaning toward one idiom or another, he offhandedly decided to call it "dawg music" -- a name which, curiously enough, has stuck.
John Sebastian has had a varied career as a singer, songwriter, and musician. As the leader of the folk-rock band the Lovin' Spoonful, he was responsible for a string of Top Ten hits in 1965-1967 that included the chart-toppers "Daydream" and "Summer in the City," and he returned to number one in 1976 as a solo artist with "Welcome Back." He wrote or co-wrote those hits as well as many others, along with songs used on Broadway and in the movies. As part of the Lovin' Spoonful, he was inducted into the Rock and Roll Hall of Fame in 2000.