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2025.11.26

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2025-11-26 13:10:21 -05:00
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doc/midistats.1
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.TH MIDISTATS 1 "18 March 2024"
.TH MIDISTATS 1 "26 November 2025"
.SH NAME
\fBmidistats\fP \- program to summarize the statistical properties of a midi file
.SH SYNOPSIS
@@ -36,26 +36,29 @@ number.
.PP
trkinfo is an array of 19 numbers which indicates the statistical properties
of the track of interest. The following data is given:
0 the channel number,
1 the first program assigned to this channel,
2 the number of notes for this channel counting any chords as one note,
3 the total number of notes for this for this channel,
4 the sum of the MIDI pitches for all the notes,
5 the sum of the note durations in MIDI pulse units,
6 the number of pitchbend messages,
7 the number of control parameter messages,
8 the number of pressure messages.
9 the number of distinct rhythm patterns for each channel
10 the number of pulses the channel was inactive
11 the minimum pitch value
12 the maximum pitch value
13 the minimum note length in pulses
14 the maximum note length in pulses
15 the number of gaps in the channel
16 the entropy of the pitch class histogram for that channel
17 the number of notes whose pitch were the same as the previous note
18 the number of notes whose pitch changed by less than 4 semitones
19 the number of notes whose pitch changed by 4 or more semitones
0 the channel number,
1 the first program assigned to this channel,
2 the number of notes for this channel counting any chords as one note,
3 the number of chord notes excluding the bass note,
4 the sum of the MIDI pitches for all the notes,
5 the sum of the note durations in MIDI pulse units,
6 the number of pitchbend messages,
7 the number of control parameter messages,
8 the number of pressure messages.
9 the number of distinct rhythm patterns for each channel
10 the number of pulses the channel was inactive
11 the minimum pitch value
12 the maximum pitch value
13 the minimum note length in pulses
14 the maximum note length in pulses
15 the number of gaps in the channel
16 the entropy of the pitch class histogram for that channel
17 the number of notes whose pitch were the same as the previous note
18 the number of notes whose pitch changed by less than 4 semitones
19 the number of notes whose pitch changed by 4 or more semitones
20 the average note velocity
21 the standard deviation of the note velocity
(In event of a chords the maximum pitches are compared.)
.PP
After processing all the individual tracks, the following information