Everyone knows suspended chords and most people know 7sus chords, but 7sus b9 chords are rarely seen except in jazz music. The 7sus b9 and 13sus b9 chords are known as Phrygian chords because they are built from the Phrygian mode of the major scale and the Phrygian M6 mode from the melodic minor scale. I have 3 open guitar chords for G7sus b9 and G13sus b9.
every open and closed guitar chord in standard tuning
All chords are available as PDF files