Table 1.

Classification count of observed behaviors

Piece type	Shape
	PL	PL+P
Improvised solos	14	440
Single movements	15	42
Several movements	3	41

The table presents the number of pieces showing PL and PL+P shapes for the three different types of pieces studied (single movements, several movements, and improvised solos). Single and several movements both refer to classical compositions. In all three cases, the PL+P shape is observed more frequently than PL, and is even more dominant in improvised jazz solos compared to classical music.