Originale: Yamazaki,Hiroshi. Confirmation Etude#1,#2,#3,#4,#5. Confirmation Etude#1. Confirmation Etude#2. Yamazaki,Hiroshi.
Traduzione: Yamazaki, Hiroshi. Confirmation Etude33. Confirmation Etude#4. Confirmation etude #5. Yamazaki, Hiroshi. Piano solo.