Possible Clues:

• Sounds like philosopher gets in touch at a choir production
• Is a farewell able to be in song?
• Motet relative
• Musical composition with religious text
• Vocal composition
• Philosopher on the radio gets little thanks after first piece of music
• Musical setting of a text
• Musical work: Farewell to Prison?
• Bach wrote one about coffee
• Able to say farewell in the way of 11 across