cantor (n.)

• alto
• baritone
• bass
• basso
• canary
• caroler
• chanter
• chantress
• choirmaster
• chorister
• contralto
• countertenor
• crooner
• diva
• mezzo-soprano
• precentor
• priest
• rabbi
• scribe
• singer
• songbird
• songster
• songstress
• soprano
• tenor
• vocalist
• vocalizer
• voice
• warbler