The crossword solution for the term RELATIVE OF A TIE IN MUSIC is SLUR, which is a four-letter word. A SLUR is a musical notation that indicates that two or more notes should be played in one continuous gesture. Slurs are often used to indicate a phrase or a legato performance, where the notes are connected together in a smooth and connected manner. Slurs can also be used to indicate a tie, which is when two notes of the same pitch are held for the duration of their combined value.