三善 晃 :ピアノ・メソード(全12巻) 練習曲216a 3度と6度の重音奏の予備練習【第10巻】
Miyoshi, Akira:Miyoshi Piano Method: 12 progressive propositions Preliminary exercise for double notes playing 3rds and 6ths
三善 晃 :ピアノ・メソード(全12巻) 練習曲216a 3度と6度の重音奏の予備練習【第10巻】
Miyoshi, Akira:Miyoshi Piano Method: 12 progressive propositions Preliminary exercise for double notes playing 3rds and 6ths