"Goodfellas" sound track is full of good songs. "Mean Streets" soundtrack is even better. Scorsese's a major doo-wop and R&R fan. He also knows opera. "Mean Streets" starts with the famous and familiar Intermezzo from Mascagni's "Cavalleria Rusticana" (heard at the end of GFIII). But he adds snippets from two seldom-performed Mascagni operas later--the Barcarolle from "Silvano," and the Intermezzo from "Guglielmo Ratcliffe."