vocalism

noun

1. Phonetics.
   1. a vowel, diphthong, triphthong, or vowel quality, as in a syllable.
   2. the system of vowels of a language.
2. the use of the voice, as in speech or song.
3. the act, principles, or art of singing.

noun

1. the exercise of the voice, as in singing or speaking
2. singing, esp in respect to technique or skill
3. phonetics
   1. a voiced speech sound, esp a vowel
   2. a system of vowels as used in a language