Johnny Dodds “My Heart”

Discographic Information

Instrument cl
Total Duration 20.2 s
Position in Track 00:58-01:18
Album Title College Music Sociecty Sourcebooks in American Music, Louis Armstrong, The Original Hot Five Recordings of Louis Armstrogn
Label Pendragon Press, New York (978-1-57647-120-3)
Recording Date 1925-11-12
Line Up Louis Armstrong (cor); Kid Ory (tb); Johnny Dodds (cl); Lillian Hardin Armstrong (p); Johnny St. Cyr (bjo)
Key Eb-maj
Signature 4/4
Groove/Feel TWOBEAT
Tonality Class FUNCTIONAL
MusicBrainz ID e94fc768-303f-4965-be23-ab3cc162a578
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Piano Roll



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Chord changes of solo:

A1: ||Eb   |Bb+7   |Eb   |Do   |Eb7   |Ab7   |F-7   |Bb7   ||
B1: ||Bb7   |Bb7   |Eb   |C7   |F7   |F7   |Bb7   |Bb7   ||
I1: ||NC   |NC   ||



Number of Notes 111  
Number of Bars 16 bars  
Number of Choruses 1  
Mean Tempo 192.2 (UP)  
Event Density 5.5 Notes/s  
Metrical Event Density 6.9 Notes/bar  
Median Swing Ratio 1.23:1 Ratio of longer to shorter eighth of beats with binary subdivision.
Metrical Centroid 3 Mean concentration of events in the bar, rounded and normalized to 4/4.
Syncopicity 17.1 % Share of syncopated notes.
Ambitus 49-63 (14) Min/max and range of MIDI pitches.
Extrema ratio 57.7 % Share of notes with direction reversal (i.e, minima and maxima of pitch contour).

Extended Chordal Diatonic Pitch Class Histogram


Extended Chordal Diatonic Pitch Class is calculated in reference to the underlying chord.

Pitch Class Histogram


MIDI Pitch Histogram


Semitone Interval Histogram


Refined Contour Histogram


Also known as “fuzzy intervals” or interval classification. See here for definition of classes

Metrical Circle Map (N=48) Histogram


Metrical circle maps divides the bar duration into equal sized bins (48 in this case) and maps metrical positions to the corresponding bin. (Labels normalized to 4/4 measure).

Duration Class (Abs. and Rel.) Histogram


Relative duration classes are based on the duration of the beat. Absolute duration classes are based on 120 bpm. See here for a definition of classes.

Midlevel Analysis Main Types Histogram


Midlevel analysis is a qualitative annotation system of playing ideas, with nine different main categories, as defined in our paper

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