Tenebrae

Open this page on a Mac, iPhone or iPad with iReal Pro and click the link.

32 bars, key D-, style Medium Swing.
32-bar form in 3/4 (A A' B C). iReal's jazz styles play in three when a chart is in 3/4, which gives the jazz-waltz feel. Set the tempo to about 138; Guitar Trio or Swing Two/Four are bouncier alternatives.
The lead sheet has a 4-bar intro (D pedal) and a 2-bar coda that ends on D7sus(b9) with the melody holding the b9 (Eb); add them in iReal's editor if you want them in the loop.
D7sus(b9) shows in iReal as D7b9sus; Dm(maj9) as D-^9.

Raw chart string:

[*AT34D7b9sus   |D7b9sus   |Eb^7#11   |Eb^7#11   |Bb^7#5   |Bb^7#5   |A7b9sus   |A7alt   ][*A<A2>D7b9sus   |D7b9sus   |Eb^7#11   |Eb^7#11   |Ab^7#5   |Ab^7#5   |Db^7#11   |Db^7#11   ][*BC7#11   |C7#11   |B7alt   |B7alt   |Bb7#11   |Bb7#11   |A7alt   |A7alt   ][*CD-^9   |D-^9   |D-^9   |D-^9   |Bb^7#5   |Bb^7#5   |Eb^7#11   |Eb^7#11   Z