This album follows the same basic pattern as "IV," but the approach is looser and more relaxed. Jimmy Page's riffs rely on ringing, folky hooks as much as they do on thundering blues-rock, giving the album a lighter, more open atmosphere. While the pseudo-reggae of "D'Yer Mak'er" and the affectionate James Brown send-up "The Crunge" suggest that the band were searching for material, they actually contribute to the musical diversity of the album. "The Rain Song" is one of album's finest moments, featuring a soaring string arrangement and a gentle, aching melody.