A folklorist without technical training in music may learn to recognize at least the general character of modal music by listening to the melodies of Gregorian chants or by playing the white keys of a piano.

• 没有经过音乐专业培训的民俗学家，至少可以通过格雷戈里的圣歌旋律，或者弹奏钢琴的白键，来熟悉辨认中古教会调式的音乐。