The term BLACK KEY is used to refer to a type of musical note. The crossword solutions for this term are EBONY (5 letters), EBON (4 letters), EFLA (4 letters), AFLAT (5 letters), EFLAT (5 letters), GFLAT (5 letters), ASHARP (6 letters), CSHARP (6 letters), and DSHARP (6 letters). These words all refer to different types of musical notes that are related to the BLACK KEY. EBONY, EBON, AFLAT, EFLAT, GFLAT, ASHARP, CSHARP, and DSHARP are all variations of the BLACK KEY, each with a slightly different pitch or tone.