Nat Adderley “Bohemia After Dark”

Discographic Information

Instrument tp
Total Duration 74.9 s
Position in Track 02:09-03:24
Album Title The Cannonball Adderley Quintet in San Francisco
Label Riverside (OJCCD 035-2)
Recording Date
  1. & 20.10.1959
Line Up Nat Adderley (tp); Bobby Timmons (p); Sam Jones (b); Louis Hayes (dr); Cannonball Adderley (as)
Key G-min
Signature 4/4
Groove/Feel SWING
Tonality Class FUNCTIONAL
MusicBrainz ID 722d294e-2d49-4445-b572-bc749270fd6c
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Piano Roll



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Chord changes of solo:

A1: ||D79b   |D79b   ||
A2: ||G-7   |Am7b5 D79b |G-7   |Am7b5 D79b |G-7   |Am7b5 D79b |G-7   |G-7   |G-7   |C7   |C7   |C7   |C7   |C7   |Am7b5   |D7   ||
A3: ||G-7   |Am7b5 D79b |G-7   |Am7b5 D79b |G-7   |Am7b5 D79b |G-7   |G-7   ||



Number of Notes 378  
Number of Bars 92 bars  
Number of Choruses 3  
Mean Tempo 295.4 (UP)  
Event Density 5.05 Notes/s  
Metrical Event Density 4.1 Notes/bar  
Median Swing Ratio 1.14:1 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 28.3 % Share of syncopated notes.
Ambitus 61-92 (31) Min/max and range of MIDI pitches.
Extrema ratio 46.8 % 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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