Figure 4c. Clockwise from top left: (1) C+ matrix with two degrees of adjacency above and below the main diagonal in bold, (2) the same diagonals extracted with the partial column for the third pitch (reflecting the window in Figure 4a) in bold, (3) values for the third pitch “sliced” from the C+ matrix, (4) a four-degree continuous C+ matrix (CONTCOM4) for phrase 2 (MIDI pitch values above), (5) a CONTCOM4 for all of Schoenberg, op. 19, no. 4.