Nate Bosch with Piano Lessons demonstrates how to play the phrygian mode on a piano. The phyrgian mode is the third mode of the major scale. Take the C major scale. The phyrgian mode will start on the third note of that scale, which is E, and contain the same notes as the C major scale. From those notes, a seventh chord can be built. Play the E, G, B and D notes to make the E minor seven chord. That mode built out of the C major scale creates E minor seven chord or the three chord. Other keys and scales can also create the phrygian mode using the same technique.