活页乐谱

原文

Chadwick, George Whitefield. Harmony. A Course of Study. Chadwick, George Whitefield. Music theory. First Edition. 1897. 55th Edition. 1922.

译文

查德威克，怀特菲尔德. 和谐. A Course of Study. 查德威克，怀特菲尔德. Music theory. First Edition. 1897. 55th Edition. 1922.