资料来源 : pyDict

第二音

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Supertonic \Su`per*ton"ic\, n. (Mus.)
   The note next above the keynote; the second of the scale.
   --Busby.

资料来源 : WordNet®

supertonic
     n : (music) the second note of a diatonic scale