(v): produce tones with the voice
(v): sing by changing register; sing by yodeling
(v): produce tones with the voice
(v): talk at great length about something of one's interest
(v): to consider or examine in speech or writing
(n): a decorative musical accompaniment (often improvised) added above a basic melody
(n): a musical part (vocal or instrumental) that supports or provides background for other musical parts
