The power-ballad piano comp — the slow 4/4 piano part under arena ballads and singer-songwriter anthems from the 70s onward: steady eighth-note chords in the right hand over big left-hand octaves.
How it sits: the left hand plays a low octave on each chord change, here beats 1 and 3, and holds it for two beats. The right hand pulses the chord in even eighths in close position, which turns a slow tempo into a steady flow. The drums play a plain backbeat — kick on 1 and 3, snare on 2 and 4, eighths on the hi-hat — and the piano eighths lock to the hat. The progression is the I–V–vi–IV loop.
Listen for the dynamic shape: the right hand stays soft and even, the octaves carry the weight, and the snare is felt as a big, slow backbeat.
Practice: voice-lead the right hand so the top note moves as little as possible (C–B–C–C), and keep the eighths legato with the pedal changed on every chord.