Tuatara is one of the more surprising and slightly ridiculous supergroups in rock history. Comprised of Peter Buck (R.E.M.), Justin Harwood (Luna), Barrett Martin (Screaming Trees), and Skerik (Critters Buggin'), the quartet formed in 1996 to pursue music that their guitar-based alternative rock groups could not do -- namely, worldbeat, lounge-pop, and free jazz. After playing several concerts on the West Coast of the U.S. in the fall of 1996, Tuatara recorded their debut album, Breaking the Ethers, which was released in April 1997. Trading with the Enemy followed in 1998, and...