Cat Christmas Advent Calendar Heavenly Harmonies Kitten Angels Musical Instruments. Bringing together the love of cats, country decor, crafting and music, this adorable advent calendar is ready to hang with two top loops. Each day counting down to Christmas has a cat with angel wings playing and instrument with a fabric cut out of an instrument in the pouch. PLEASE NOTE, it seems as though the mandolin cut out on the 23rd is missing. On the bottom of the piece is a pouch to store all the fabric instruments as the days pass.