Synonyms for Singing (same or very similar meaning)
WordNet sense 1 (disclosing information or giving evidence about another):
tattle, telling
WordNet sense 2 (smooth and flowing):
cantabile
WordNet sense 3 (containing or constituting or characterized by pleasing melody):
melodic, melodious
WordNet sense 4 (the act of singing vocal music):
vocalizing
From the ODE community, based on WordNet
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