The term SCORE LINE is composed of two crossword solutions: SLUR (4 letters) and OBOEPART (8 letters). SLUR is a musical notation that indicates a note should be played or sung with a smooth, connected legato articulation. OBOEPART is a part of an oboe, which is a double-reed woodwind instrument. The score line is the combination of these two elements, indicating a smooth, connected legato articulation should be used when playing or singing a note on the oboe.