Related Clues:

• See 1-Across
• In ___ land (spacy)
• Syllables meaning 'I forgot the words'
• Chorus syllables
• Quarter of a quartet, maybe
• Violist's clef
• Musical syllables
• Countertenor
• Doo-wop part
• Chorus voice
• Kind of horn
• See 24-Down
• Kind of sax
• Fa follower
• See 19-Across