Using modes along with chord changes

When the chords are in the harmony of A minor, you can just play the notes starting on the different degree as the chord changes without even thinking about which mode you are playing. But even if you do not think such, you will be playing the modes automatically. In this example, you will play aeolean, mixolydian and lydian mode and arpeggio of E7 chord. But you can also simplify it as playing A minor scale starting on different degrees