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. 2023 Apr 7;9(4):e15199. doi: 10.1016/j.heliyon.2023.e15199

Table 3.

Matrix M0: Probabilities that an event happens in an instrumental layer on a metric position, based on a corpus of n=211 popular music drum patterns. The probabilities repeat every bar. Events of the generic backbeat pattern in bold print, see also Fig. 2 (a).


Metric position

Instrumental Layer
k= Bass Drum (l=1) Snare Drum (l=2) Cymbals (l=3)
Bar 1 0.00 1 0.914 0.039 0.607
0.25 2 0.033 0.102 0.129
0.50 3 0.320 0.057 0.642
0.75 4 0.192 0.040 0.132
1.00 5 0.184 0.887 0.719
1.25 6 0.063 0.084 0.134
1.50 7 0.246 0.074 0.664
1.75 8 0.162 0.187 0.156
2.00 9 0.641 0.082 0.717
2.25 10 0.065 0.209 0.143
2.50 11 0.454 0.084 0.626
2.75 12 0.206 0.056 0.141
3.00 13 0.191 0.847 0.683
3.25 14 0.133 0.085 0.126
3.50 15 0.238 0.145 0.623
3.75 16 0.108 0.187 0.143
Bar 2 4.00 17 0.914 0.039 0.607
4.25 18 0.033 0.102 0.129
4.50 19 0.320 0.057 0.642
Bar 5 16.00 65 0.914 0.039 0.607