The term MUSICAL DISC can be broken down into two crossword solutions: GONG (4 letters) and RECORD (6 letters). A GONG is a percussion instrument that is usually made of metal and has a distinct sound. It is often used in musical performances, especially in Asian cultures. A RECORD is a flat disc made of vinyl or plastic that is used to store audio recordings. Records have been around since the late 1800s and are still popular today.