A note can be the end of one slur and the start of a new slur. Also, in MusicXML, nested slurs are possible like in the second measure where one slur goes over all four notes, and another slur goes from the second to the third note. MusicXML Part 1 0 major G 2 G 4 1 1 quarter C 5 1 1 quarter A 4 1 1 quarter G 4 1 1 quarter G 4 1 1 quarter C 5 1 1 quarter A 4 1 1 quarter G 4 1 1 quarter light-heavy