Sonny Rollins “St. Thomas”

Discographic Information

Instrument ts
Total Duration 92.5 s
Position in Track 00:49-02:22
Album Title Saxophone Collosus
Label Prestige (OJCCD-291-2)
Recording Date 1956-06-22
Line Up Tommy Flanagan (p); Doug Watkins (b); Max Roach (dr); Sonny Rollins (ts)
Key C-maj
Signature 4/4
Groove/Feel LATIN
Tonality Class FUNCTIONAL
MusicBrainz ID 743ab1b8-c929-4f2f-8ee0-401a01434144
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Piano Roll



Download MIDI File


Chord changes of solo:

A1: ||C69   |E-7 A7 |D-7 G7 |C69   |C69   |E-7 A7 |D-7 G7 |C69   ||
B1: ||Em7b5   |A79#   |D-7   |G7   |C69 C7 |Fj7 F#o |C/G G7 |C79   ||



Number of Notes 435  
Number of Bars 80 bars  
Number of Choruses 5  
Mean Tempo 207.0 (UP)  
Event Density 4.7 Notes/s  
Metrical Event Density 5.44 Notes/bar  
Median Swing Ratio 1.36:1 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 31.0 % Share of syncopated notes.
Ambitus 44-76 (32) Min/max and range of MIDI pitches.
Extrema ratio 48.5 % 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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