types:
bandsman
a player in a band (especially a military band)
bassist
a musician who plays the lowest-pitched string instrument such as a bass guitar or double bass
gambist
a musician who performs upon the viola da gamba
hornist
a musician who plays a horn (especially a French horn)
oboist
a musician who plays the oboe
soloist
a musician who performs a solo
violist
a musician who plays the viola
alto
a singer whose voice lies in the alto clef
bass,
basso
an adult male singer with the lowest voice
bugler
someone who plays a bugle
castrato
a male singer who was castrated before puberty and retains a soprano or alto voice
chorister
a member of a singing group, especially in church
contralto
a woman singer having a contralto voice
hummer
a singer who produces a tune without opening the lips or forming words
rapper
someone who performs rap music
syncopator
a musician who plays syncopated jazz music (usually in a dance band)
tenor
an adult male with a tenor voice
thrush
a woman who sings popular songs
torch singer
a singer (usually a woman) who specializes in singing torch songs
voice
(metonymy) a singer
warbler
a singer; usually a singer who adds embellishments to the song
yodeler,
yodeller
a singer who changes register rapidly (popular is Swiss folk songs)