25 Estudos Op.100

14 Studies in Duet Form for 1-2 flutes

The School of Violin-Techniques – Book 1

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Six études por le main gauche seule op. 135

12 Etudes op. 8 – Piano

8 Etudes in Jazz Style

60 Estudos Op.45, Vol.I e Vol.II (completo)

31 Estudos – Trombone

18 Estudos Característicos Op.109

Concert Etudes for Marimba, vol.1: Leaps and Estensions + CD

60 Easy Studies – Oboé