Related Clues:

• Developmental period
• Doo-wop part
• Chorus voice
• Voice above baritone
• Kind of horn
• See 24-Down
• Theater area
• Kind of sax
• See 19-Across
• Old transport
• Choir section
• Trujillo ___ (Puerto Rican city)
• Setting for this puzzle's theme
• Low voice
• Annina in 'Der Rosenkavalier'