The term 'PART OF A SCORE' can be broken down into four crossword solutions: NOTE (4 letters), MEASURE (7 letters), ARIA (4 letters), and WHOLENOTE (9 letters). A NOTE is a musical symbol that indicates the pitch, duration, and intensity of a sound. A MEASURE is a unit of music that is made up of a certain number of beats. An ARIA is a type of song that is usually sung by a solo voice in an opera or other musical work. A whole NOTE is a type of NOTE that has the longest duration in modern music notation.