Rock-and-Roll Music by The Beatles is a lively homage to the rock-and-roll genre that transformed the music scene in the 1950s. The song emphasizes the powerful and joyful essence of rock-and-roll, celebrating its ability to bring people together and make them dance. The key themes include the love for rock-and-roll, nostalgia for its early days, and the unifying power of music. Notable moments in the song include the energetic refrain and the fervent declaration of rock-and-roll as the ultimate form of music, highlighting its importance in cultural and personal expression.