cantomaniac

one who is given to excessive singing; one who sings at the drop of a hat; one for whom song is a predominant form of self-expression.
My friend, Julie, is a cantomaniac - every time I go to her house, I can hear her singing before I get to the door!
by Lynn K. Edisen January 23, 2009
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cantomaniacal

a recent coinage, meaning, literally, " crazy about singing..."
The vocal music major described herself as cantomaniacal.
by niles lishness June 13, 2007
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