She seems to be singing in the key of "D". The bass notes are very clear. Seems at the end she modulates to Eb. Might not help much, but I would write down the notes that the bass player is playing and number them using my keyboard. Then I would put chords to the numbers that I had written, using minor chords as necessary(2, 3, 6, --dim. or sometimes a 5 chord on the 7). That would get you started until someone posts the chords.