The basis and texture of Cool Jazz and Baroque compositions

The chord instruments provide the harmonic basis which the melody fits and in addition provide a basis for improvised solos.  The rhythmic instruments are especially necessary to keep a steady beat during improvised solo sections to keep some form in the piece while allowing the soloist to express themselves or their virtuosity through complex rhythms. The Basso Continuo can be heard as an integral part and basis of the ensemble in the second movement of the Brandenburg Conerto Affeuttoso:

Homophonically harmonized melodies exist in both styles:

Throughout Bach's compositions melodies are harmonized homophonically in the string section. Similarly the horn section plays this role in 'So What'. Throughout Cool Jazz simple homophony is evident in the tutti sections reflecting the simplicity of the style.[4]

In the pieces 'So What' and Bach's Brandenburg Concerto No. 5 this accompanying section is utilised as a integral part of the melodic structure of the pieces in contrast to their normal role. In 'So What' a bass motif begins the piece comparable to bass ostinatos frequently featured in Baroque composition.[1] Bach features the harpsichord as a solo instrument. In jazz pieces the rhythm section is often featured with improvised piano and percussion solos.[2]

Secondary Link – Instrumentation

While not a direct musical link the similar instrumentation utilised in both styles demonstrates the first musical link. In Baroque and Cool Jazz, compositions are structured with instrumental to provide a rhythmic and melodic basis. In jazz this is in the form of the 'rhythm section' usually consisting of a drum kit, bass instrument such as an electric bass or double bass and a piano or other chordal instrument. A similar section is evident in baroque music called the basso continuo also consisting of a bass instrument such as a cello or double bass and an instrument to play chords such as a harpsichord, guitar, lute or organ.[3] Not only do the styles share a common link with this instrument choice but the purpose of this section is similar. The basso continuo can be heard as an integral part and basis of the ensemble in the second movement of the Brandenburg Conerto Affeuttoso:

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[1]Kamien, R., 2008, Music: An Appreciation, McGraw Hill, New York, p.270
[2] ibid

[3] ibid, p.273