1. Christmas hymn or song   overture   tempo   carol   alto   Hint Half-n-half Clue   2. musical composition numbered as a composer's work   operetta   octave   opus   alto   Half-n-half Clue   3. short or light musical drama   alto   movement   octet   operetta   Half-n-half Clue   4. person who directs a choir's or orchestra's performance   conductor   operetta   scale   concerto   Half-n-half Clue   5. variations in volume through a musical composition   operetta   dynamics   intermezzo   polyphony   Half-n-half Clue   6. music for a group of three instruments or voices   octave   pitch   alto   trio   Half-n-half Clue   7. composition written for eight voices or instruments   quartet   chord   octet   alto   Half-n-half Clue