Possible Definitions:
1. Music (n.) The science and the art of tones, or musical sounds, i. e., sounds of higher or lower pitch, begotten of uniform and synchronous vibrations, as of a string at various degrees of tension; the science of harmonical tones which treats of the principles of harmony, or the properties, dependences, and relations of tones to each other; the art of combining tones in a manner to please the ear.
2. Music (n.) Melody; a rhythmical and otherwise agreeable succession of tones.
3. Music (n.) Harmony; an accordant combination of simultaneous tones.
4. Music (n.) The written and printed notation of a musical composition; the score.
5. Music (n.) Love of music; capacity of enjoying music.
6. Music (n.) A more or less musical sound made by many of the lower animals. See Stridulation.