Historical clue formulations

• Music producer: Abbr. — 2015-12-19
• Score abbr. — 2013-10-13
• Orch. member — 2013-02-28
• Wordless song: Abbr. — 2011-10-12
• Music producer: Abbr. — 2009-05-22
• Violin or cello: Abbr. — 2008-05-06