"Name tune" can refer to a variety of different things depending on the context in which it's being used. One synonym for this phrase might be "theme song," which refers to a melody or piece of music that is associated with a particular person or character. Another synonym might be "signature tune," which is often used interchangeably with "theme song" but can also refer specifically to a piece of music that is associated with a particular radio or television show. Other synonyms for "name tune" might include "intro music," "opening music," "soundtrack," "score," or "jingle," depending on the specific context in which the phrase is being used.