On The One – Robert Watson

We have chosen to use "medium up groove" instead of "medium up swing" for this one, as it is built around a four-measure bass figure used for both the head and solos. This bass line is static for the first two measures, becoming more active for the next two as sort of a pickup to the top of the phrase. The tonic chord is F7sus; coupled with the static bass line, the suspended harmony has a slightly floating quality, but is grounded by the second half of the bass figure. The form for both the head and solos is essentially a 16-measure AABA; the bridge goes to E♭ and D♭ major. The melody is slightly different on the three A sections, and its rhythm does not include the first two or last two hits in the bass line, creating a subtle call-and-response.