Harmonic
Part of speech: adjective
Definition: Pertaining to harmony. Pleasant to hear; harmonious; melodious. Attribute of many mathematical entities that only in few cases are obviously related. a component frequency of the signal of a wave that is an integer multiple of the fundamental frequency.
Example sentence: My voice is my improvisational instrument, the melody instrument. The guitar is harmonic structure. I'm not a good enough guitarist to improvise on it.
Music
Part of speech: noun
Definition: A sound, or the study of such sounds, organized in time.Any pleasing or interesting soundsA guide to playing or singing a particular tune; sheet music.
Example sentence: After silence, that which comes nearest to expressing the inexpressible is music.