Noter
Original
Shuebruk, Richard. 20 Duets for French Horn and Trombone Vol 2. Shuebruk, Richard. Leffef, Frits. 20 Duets for French Horn and Trombone Vol 2.
Oversettelse
Shuebruk, Richard. 20 Duets for French Horn og Trombone Vol 2. Shuebruk, Richard. Leffef, Frits. 20 Duets for French Horn og Trombone Vol 2.