Related Clues:

• Lure with music
• Sing like a bird
• Chirp
• Imitate a songbird
• Sing shrilly
• Entice with music
• Play casually on the river Lune's banks
• Whistle that is nominally shared by two quarrelling brothers
• ... dum and ...dee, characters in Through the Looking Glass
• Dainty, oddly dulcet strum