WApache fiddle
WArcadetar
WBuccin
WConsole steel guitar
WContinuum Fingerboard
WCroix Sonore
WDaxophone
WDiddley bow
WElectric upright bass
WElectro-Theremin
WErhu
WFender 1000
WFlexatone
WFretless guitar
WHuqin
WKazoo
WKobyz
WLap steel guitar
WLap steel ukulele
WMonochord
WMonochord
WMusical saw
WOndes Martenot
WOud
WPedal steel guitar
WPitch wheel
WResonator guitar
WSackbut
WShamisen
WSlide guitar
WSpharophon
WSteel guitar
WSuperbone
WTheremin
WTihu (instrument)
WTimpani
WTrautonium
WTrombone
WP. D. Q. Bach
WWashtub bass