Oriģināls: Cello Time Scales. Kathy and David Blackwell. Cello sheet music. Beginning. Cello Time Scales. Pieces, puzzles, scales, and arpeggios.
Tulkojums: Cello Time Svari. Paātrinātājs. Kathy un David Blackwell. Čells notis. Sākums. Cello Time Svari. Gabali, puzles, svari un arpeggios.