Possible Clues:

• Often last movement of sonata
• Mozart movement
• Concerto finale, perhaps
• Celtics guard Rajon
• Chancellor's latest working party has repetitive theme
• Republican leader being shown party's composition
• Piece to be played by boy at party
• Piece of music, often of the last movement
• Piece of music with repeated refrain
• Piece of music from caroller on doorstep