Bản dịch gốc: 431. Altes Lesson 1 by Henri Altes, Arr. Hatsuho M. Kuwayama Educational, Classical, duet (of the same instrument), 4 minutes, .
Bản dịch: 431. Altes Lesson 1 by Henri Altes, Arr. Hatsuho M. Kuwayama Educational, Classical, duet (of the same instrument), 4 minutes, .