포인트: 2 + 2 (3.5)버전: 2.0 Cello Key is a simple fingerboard chart application for cello learners. Cello learners are often troubled by the question, "Which note should I press, in which position and with which ...
포인트: 2 + 2 (3.5)버전: 2.0 Cello Key is a simple fingerboard chart application for cello learners. Cello learners are often troubled by the question, "Which note should I press, in which position and with which ...
