Key to Heart and Soul

Ginger Hennypenny takes delight in running her music shop, Key to Heart and Soul and overseeing her piano rescue foundation.  On her birthday, she's given a key with a riddle from Margie, her eccentric grandmother.  Her sisters received a key that would eventually lead them to a treasure, but Ginny's key won't open anything.  You expected to find a regular key, but this is the key to everything yo...