Loved The Four Seasons and Frankie Valli. Bob Crewe's contributions were a large part of the records' charm. Great productions. Inventive percussion. Aggressive vocals. My absolute fave is Rag Doll. Out "wall-of-sound's" Phil Spector's work IMHO. Everything about that record is sheer perfection. Lyrics, Instrumental track, harmonies, lead vocal. The intro and the fade are glorious. Melodramatic, almost operatic and religious but just perfect pop music really. Listen to it again. It does not disappoint.
http://youtu.be/kJY83Ehuq1YRIP Bob. Your music will live on for generations.