Оригінал: Tango Collection for Violin and Viola, Vol. 1. Lita. Viola sheet music. Violin sheet music. For violin and viola duet. This edition.
Переклад: Віола ноти. Скрипка ноти. Tango Collection for Violin and Viola, Vol. 1 edited by Christoph Emmanuel Langheim. Для скрипки і альта дует.