vocalism

noun

1. Speaking or singing.

   “The exciting vocalism of Leontyne Price”

2. The vowel sounds used in a language.
3. The vowels, sequence of vowels, or the quality peculiar to the vowels of a given word or group of words.

   “All forms contain a base *θirr- or *θurr-. Types 1 and 2 [which contain *θirr] may have been influenced by θirri̯are 'to screech', suggesting that the forms with *θurr- preserve the original vocalism.”