Other hyponyms of singer include
alto,
baritone,
barytone,
bass,
basso,
canary,
caroler,
caroller,
castrato,
chorister,
contralto,
balladeer,
crooner,
folk singer,
jongleur,
minstrel,
troubadour,
hummer,
lieder singer,
madrigalist,
opera star,
operatic star,
rapper,
rock star,
songster,
soprano,
tenor,
thrush,
torch singer,
voice,
warbler,
yodeller.