Originally Posted by: slasner... the chord in question is the first chord of a two chord section the next chord is Am7/11. each chord gets 2 measures and it repeats twice equaling 8 measures.[/quote]
Ah! So then you have:

Ab/Db: Db - Ab - C - Eb
Am7/11: A - C - E - G - D

Write them all out and look for a scale, key or harmonic relationship:

A - C - Db - D - Eb - E - G - Ab
1 - min3 - MAJ3 - 4 - b5 - 5 - min7 - MAJ7

Too many chromatic half-steps to all be in one key or scale. So you are going to have to view some of them as passing tones. But you can use all those notes and emphasize the chord tones for the chord that is happening at the time.

So on the Ab/Db bars play the scale and finish lines on that chord's notes, or play them on the rhythmically strong beats (typically the 1 and 3 or all downbeats). And use the non-chord notes as passing tones in between the chord tones (weak beats or upbeats). Or only play the notes of that chord (chord tone approach). When the chord changes, change your approach.

Interestingly, those notes do make a kind of "bluesy" minor pentatonic scale with lots of passing tones:

E|-------------------------------------4-5-8-9--|
B|--------------------------------5-8-----------|
G|-----------------------5-6-7-8----------------|
D|----------------5-6-7-------------------------|
A|-------4-5-6-7--------------------------------|
E|-(4)-5----------------------------------------|

[QUOTE=slasner]
I have been using an A#min pent over the chord in question and an Am pent over the Am7/11 it works but I want more to work with.

I hope my suggestions give you something to start with then.

If you have enough time (relatively slow tempo) you could approach each chord. This assumes you are comfortable with and desire a "jazzy" sound. So play a ii-V7 of each chord. With those chords it's gonna sound pretty "out there", but if you try it you might find a couple of licks that work for you.

Example: while the Ab/Db chord is happening play Ab major for the 1st bar, but when the 2nd bar starts, begin to look at approaching the Am7/11 chord. The ii of Amin is Bmin7b5 and the V7 is E7. So play either arpeggios or lines that outline or suggest those chords. Then when the Am7/11 arrives you have "prepared" for it's arrival using a harmonic progression.

Start playing Amin over the Am7/11 for the 1st bar, then when the 2nd bar starts, begin to look at approaching the Ab/Db chord. The ii of Ab is Bbmin and the V7 is Eb7. So play either arpeggios or lines that outline or suggest those chords. Then when the Ab/Db arrives you have "prepared" for it's arrival using a harmonic progression.

Make sense?

Again it's gonna sound pretty weird (depending upon your personal tastes). But with some woodshedding you might just find a lick or two that perfectly suit your desires. Then, interweave them with the pentatonics you've been using, mix that with some of the ideas I mentioned earlier and finally make sure to throw in a few chord tone, arpeggio licks (to strongly outline those very disparate chords).

Happy playing.