Related Clues:

• Sing nonsense syllables
• Improvise vocally
• Spout nonsense?
• "Amscray!"
• Wordless singing style
• Ella's forte
• Jazz variety
• 'Get out of here!'
• Sing like Ella
• "Hit the road!"
• Torme's forte
• "Go away!"
• "Get lost!"
• "Scoot critter!"
• Jazzy improv style