Massive Attack was one of the first groups to create trip-hop, a mixture of hip-hop rhythms, dub grooves, and looped samples. Their work met with universal critical success, and they influenced generations of musicians. Protection is the group's second album, and while successful, was not as critically successful as their debut, Blue Lines. Massive Attach is a mood - or a vibe. Their material is mesmerizing, engaging dance music. They have a range of guest vocalists on the tracks, giving the album an impressive range, while maintaining a consistent mood throughout. The album is excellent, but the last track, a live "Light My Fire" cover, did not help the cause.