Steely Dan's music is witty and wry, if not rather indefinable. If you know where the duo got its name, you'd know what I mean. The band formed in the early 1970's as a sort of antithesis to rock. Members Walter Becker and Donald Fagen first pitched their sound in the Brill building, coming to the attention of Jay and the Americans and low-budget film work. The duo's 1972 debut album, "Can't Buy a Thrill," solidified Steely Dan as a classic rock staple.