Original: Cello Time Scales. Sweet Betsy from Pike. Kathy and David Blackwell. Cello sheet music. Beginning. Cello Time Scales. For cello.
Oversettelse: Cello tidsskalaer. Kathy og David Blackwell. Cello noter. Begynnelsen. Cello tidsskalaer. Deler, puslespill, badevekt og arpeggio. Studier.