Sour Notes is a term used to describe unpleasant sounds or tones that are heard in music. CLINKERS, an 8-letter solution to the crossword, is a term used to describe a harsh, metallic sound that is often heard when playing a brass instrument. Faulty Sounds, a 12-letter solution to the crossword, is a term used to describe any sound that is out of tune or discordant. Both CLINKERS and Faulty Sounds are examples of Sour Notes.