Possible Clues:

• Letters after lambdas
• Ancient Greek statuary site: Abbr
• Hamlisch's coll. major
• Some Greek letters
• Performing arts library abbr.
• Artistic maj.
• Rock and Roll Hall of Fame, e.g.: Abbr.
• R&B and C&W: Abbr.
• Coll. major for a future concert artist
• Count up characters here