Original: 60 Methodical Lessons, Op. 31. Flute sheet music. 60 Methodical Lessons, Op. 31. Flute Duet Performance Score. Woodwind.
Oversettelse: 60 Metodisk Lessons, Op. 31. Flute noter. 60 Metodisk Lessons, Op. 31. Composed by Fran and François René Gebauer. Treblås.