Category talk:Japanese musical instruments

Scope
Is this category really applicable to brands of non-traditional Japanese musical instruments like Akai, Casio, Kawai, Korg, Roland, Yamaha? As this category is itself in the categories Category:Asian musical instruments and Category:Japanese traditional music, those brands are also in those, which doesn't seem correct. -- Michael Bednarek (talk) 06:44, 6 May 2017 (UTC)