VAADI : literally means to speak. In a raga, a vadi swara is a note that produces the feeling of the raga. 
  

VAGGEYAKAARA : a composer of music. 
  

VAKRA : twisted or non-regular. 
  

VRINDA GAANA : is choral singing. 
  

VISTAAR : to elaborate. 
  

VIVADI SWARA : it is a swara which is dissonant to the scale of a raaga.