原文: Write, Play, and Hear Your Theory Every Day, Book 6. Major, Perfect and minor intervals. 8 time signature. For piano.
译文: Write, Play, and Hear Your Theory Every Day, Book 6 composed by Helen Marlais with Peggy O'Dell. 钢琴方法乐谱. 钢琴独奏乐谱. 钢琴. FJH钢琴家的课程. 法书.