Historical clue formulations

• Sting, e.g. — 2015-07-25
• Sting, e.g. — 2011-06-26
• Paul McCartney in the Beatles — 2005-11-15
• Bill Wyman, in the Rolling Stones — 2004-05-16
• One of the strings — 2002-01-24
• Jazz's Charles Mingus, e.g. — 1995-12-06