November 1999

__Appendix 2__

__Statistics of the training set__

The number of notes in the training set: 7982

The total percents of each pitch output unit in the training set:

C |
C# |
D |
D# |
E |
F |
F# |
G |
G# |
A |
A# |
B |

16.02% | 0.12% | 14.83% | 0.18% | 20.83% | 9.64% | 0.55% | 11.66% | 1.32% | 14.90% | 0.18% | 9.70% |

The total percents of each interval output unit in the training set:

-12 to -6 |
-5 to -3 |
-2 to -1 |
0 |
+1 to +2 |
+3 to +5 |
+6 to +12 |

2.89% | 11.41% | 28.77% | 18.81% | 22.08% | 11.82% | 4.18% |

The total percents of each interval in the training set:

-18 interval: 0% (-1.5 octave) -17 interval: 0.0251% -16 interval: 0% -15 interval: 0% -14 interval: 0% -13 interval: 0% -12 interval: 0.4761% (-1 octave) -11 interval: 0% -10 interval: 0.0501% -9 interval: 0.3633% -8 interval: 0.1253% -7 interval: 1.6788% -6 interval: 0.1754% (-0.5 octave) -5 interval: 2.9316% -4 interval: 3.1070% -3 interval: 5.3746% -2 interval: 18.4916% -1 interval: 10.2856% 0 interval: 18.8173% (no change) +1 interval: 7.7675% +2 interval: 14.3197% +3 interval: 5.3746% +4 interval: 2.6685% +5 interval: 3.7835% +6 interval: 0.0752% (+0.5 octave) +7 interval: 1.8667% +8 interval: 0.8519% +9 interval: 0.7893% +10 interval: 0.1629% +11 interval: 0% +12 interval: 0.3257% (+1 octave) +13 interval: 0.0125% +14 interval: 0% +15 interval: 0.1002% +16 interval: 0% +17 interval: 0% +18 interval: 0% (+1.5 octave)

The total percents of chords that appear in the training set:

Chord |
Percent as the current chord |
Percent as the next chord |

Am |
24.27% | 23.36% |

C |
19.69% | 21.38% |

Dm |
14.39% | 14.82% |

G7 |
12.02% | 11.11% |

E7 |
10.34% | 10.06% |

F |
6.50% | 5.52% |

G |
3.38% | 3.85% |

A7 |
3.08% | 2.46% |

Em |
1.86% | 1.86% |

E |
1.52% | 1.82% |

B7 |
0.68% | 0.83% |

A |
0.57% | 0.60% |

D |
0.30% | 0.37% |

D7 |
0.25% | 0.15% |

Bm7 |
0.25% | 0.06% |

Dm7 |
0.17% | 0.07% |

Gm |
0.16% | 0.16% |

Am7 |
0.15% | 0.27% |

C7 |
0.15% | 0.05% |

Bb |
0.13% | 0.05% |

B |
0.05% | 0.07% |

Silence * |
- | 0.98% |

* Silence appears in the training set only at the end of the song, and only as the next chord.

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Speedy