Ben Webster “Where or When”

Discographic Information

Instrument ts
Total Duration 117.2 s
Position in Track 02:15-04:12
Album Title Ben Webster “The Frog” with: Art Tatum, Oscar Peterson, Hank Jones, guest: Harry Edison,1956-1962
Label Giants of Jazz (CD 53167 AAD)
Recording Date 1956-09-11
Line Up Ben Webster (ts); Art Tatum (p); Red Callender (b); Bill Douglas (dr)
Key Ab-maj
Signature 4/4
Groove/Feel SWING
Tonality Class FUNCTIONAL
MusicBrainz ID 7eb298e8-12a6-4d2f-a506-4f697b1c1760
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Piano Roll



Download MIDI File


Chord changes of solo:

A1: ||Abj7   |Abj7   |Abo7   |Abj7   |Dbj7   |Dbj7   |Dbj7   |Bb-7 Ebsus79 |D7 F7 |Bb7 Eb7 ||
A2: ||Abj7   |Abj7   |Abo7   |Abj7   |Dbj7   |Dbj7   |Dbj7   |Bb-7 Ebsus79 |G-7   |C7   ||
B1: ||F-7   |Bb7   |G-7   |C7   |F-7   |Bb7   |Bb7 E7911# |Eb7   ||
A3: ||Abj7   |D-7 G7 |Db7911# C7 |F-7   |Bb-7   |C-7 F7 |Bb-7   |F7   |Bb-7   |Eb7   |Ab69   |Ab69   ||
I1: ||NC   ||



Number of Notes 268  
Number of Bars 40 bars  
Number of Choruses 1  
Mean Tempo 82.1 (MEDIUM SLOW)  
Event Density 2.29 Notes/s  
Metrical Event Density 6.68 Notes/bar  
Median Swing Ratio 1.58:1 Ratio of longer to shorter eighth of beats with binary subdivision.
Metrical Centroid 1 Mean concentration of events in the bar, rounded and normalized to 4/4.
Syncopicity 41.0 % Share of syncopated notes.
Ambitus 48-68 (20) Min/max and range of MIDI pitches.
Extrema ratio 38.1 % 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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