Possible Clues:

• The girl to spoil first class return!
• A girl I've just met? Mark the song
• and 4 Absentee novelist
• Tony's musical love
• Ave ___
• 'The Sound of Music' song
• Ms Callas, soprano
• 1957 song that begins 'The most beautiful sound I ever heard …'
• Musical character who sings 'My Favorite Things'
• Lunar seas