Original: 431. Altes Lesson 1 by Henri Altes, Arr. Hatsuho M. Kuwayama Educational, Classical, duet (of the same instrument), 4 minutes, .
Traducere: 431. Altes Lectia 1 de Altes Henri, Arr. Hatsuho M. Kuwayama educaţionale, clasică, duet (din acelaşi instrument), la 4 minute,.