Hirzel, Susanne

Hirzel Susanne: Hirzel Cello Technique-thumb Position

Hirzel, S: Cello Method, Vol. 3: Fourth-Seventh Position, Vibrato, Chords (G)

Hirzel, S: Cello Method, Vol. 1: First Position (G)

Hirzel, S: Cello Method, Vol. 2: Second and Third Position (G)