Chord progression in the key of B.
The chords are: Emaj (IV), Bmaj (I), F#dom7 (V), Edom7 (IV)
The video is a still image of a music staff with the chord notes
and guitar chord diagrams.
The audio was generated using the MMA: Musical MIDI Accompaniment
"SlowBoleroPlus" groove at 135 beats per minute.