The paper discussed the various intervals with viewpoints of pitches interval and relation, rational and irrational intervals, whole-tone and semitone interval.

• 论文对“音程”的“音高距离说”与“音高关系说”、“全音音程”与“半音音程”、“有理音程”与“无理音程”、“未知音程”与“乱码音程”，逐一进行了辨析。