Encouragement for young flautists op. 62 Vol. 1 50 progressive and recreatifs Duos in 2 volumes 二重奏 雙長笛 朔特版

這些創作於 1855 年的二重奏旨在幫助學生在技術上，尤其是在音樂上，分階段取得進步。從八度 g'-g'''開始，學生們打下了堅實的音樂基礎，然後再學習不同風格和特點的各種樂曲，這反過來又為他們提供了進一步學習的動力"

作曲家: Keller, Charles
編者: Delius, Nikolaus
樂器: 2 flutes
出版社: Schott Music
原文簡介:
These duets, composed in 1855 are intended to help students to progress - technically and especially musically in carefully designed stages. Starting with the octave g'-g'', students acquire a solid musical foundation before progressing to a wide range of pieces in different styles and characters which in turn provide them with the motivation for further study.