The term 'Main MELODY' is a musical term used to describe the main or most prominent MELODY in a piece of music. It is usually the most memorable part of a song and is often the part that is repeated throughout the song. The crossword solutions for this term are 'THEME, ' which is a musical idea or concept that is repeated throughout a piece of music, and 'MELODY, ' which is a succession of notes that form a recognizable tune.