Figure 2.

Feature extraction process. Each panel shows the procedure used to extract features relating to one of five categories: (a) ‘swing’, (b) ‘complexity’, (c) ‘feel’ (piano→bass only), (d) ‘interaction’ and (e) ‘tempo’. In all but (b), coloured circles represent onsets and grey rectangles the window around which these were matched to tracked beats (see Dataset Construction, above). In (b), grey rectangles represent the sliding four-measure window to which the LZ77 algorithm was applied. Time progresses from left to right in every panel.