Related Clues:

• Stadium sounds
• Sounds of disapproval
• Hecklers' chorus
• Sound from the bleachers
• Strikers' commotion
• Haunted house sounds
• Ringside responses
• Responses to some calls
• Canticle
• Sing
• Emulate a hazan
• Shows displeasure
• Stadium harassment
• Sound from a monastery, maybe
• Derisive reception