"A fifth top-level group, electrophones, instruments which make sound primarily by way of electrically driven oscillators, such as theremins or synthesizers, was added later."

Should Turntables (when used by DJs as "musical instruments") be added to this classifiation system and if so, which category sould they go in? Have any attempts been made to do this?203.214.75.1272005 (UTC)

• Tricky, but rightly I'd say a turntable is an ideophone (more precisely a lamellophone), since the vibrating element is the needle, which is (part of) its body. But probably some spoilsport has decided it's an electrophone. Tom Duff 02:41, 17 October 2006 (UTC)[reply]

While I'm here, the link to The original system as published in 1914 (in German) is broken, but the Internet Archive has a copy. I'm not sure what the party line is on Internet Archive links, so I haven't updated it. Tom Duff 02:41, 17 October 2006 (UTC)[reply]