Historical clue formulations

• Three-stringed Eastern instrument — 2014-04-03
• Musical instrument for a geisha — 2014-01-31
• Geisha's instrument — 2013-09-21
• Its three strings are plucked with a bachi — 2011-03-12
• Instrument played with a spatula — 2010-01-23
• Banjolike Japanese instrument — 2007-08-18
• Three-stringed instrument — 2002-11-03
• Sanjo banjo — 1996-09-28
• Japanese guitar — 1994-10-20