R.E.M. began to move toward mainstream record production on Lifes Rich Pageant, but they didn't have a commercial breakthrough until the following year's Document. Ironically, Document is a stranger, more varied album than its predecessor, but co-producer Scott Litt – who would go on to produce every R.E.M. album in the following decade – is a better conduit for the band than Don Gehman, giving the group a clean sound without sacrificing their enigmatic tendencies. "Finest Worksong," the stream-of-conscious rant "It's the End of the World as We Know It (And I Feel Fine)," and the surprise Top Ten single "The One I Love" all crackle with muscular rhythms and guitar riffs, but the real surprise is how political the mid-tempo jangle pop of "Welcome to the Occupation," "Disturbance at the Heron House," and "King of Birds" is. Where Lifes Rich Pageant sounded a bit like a party record, Document is a fiery statement, and its memorable melodies and riffs are made all the more indelible by its righteous anger.

After the expanded instrumental scale and sonic experimentation of Court & Spark and The Hissing of Summer Lawns, Joni Mitchell reverses that flow for the more intimate, interior music on Hejira, which retracts the arranging style to focus on Mitchell's distinctive acoustic guitar and piano, and the brilliant, lyrical bass fantasias of fretless bass innovator Jaco Pastorius. Known for his furious, sometimes rococo figures beneath the music of Weather Report, Pastorius is tamed by Mitchell's cooler, more deliberate ballads: these meditations coax a far gentler, subdued lyricism from Pastorius, whose intricate bass counterpoints Mitchell's coolly elegant singing, especially on the sublime "Amelia," which transforms the mystery of Amelia Earheart into a parable of both feminism and romantic self-discovery. This isn't Mitchell at her most obviously ambitious, yet the depth of feeling, poetic reach, and musical confidence make this among the finest works in a very fine canon.

Ryuichi Sakamoto, one of the pioneering figures of Japanese electronic music, demonstrates his versatility on this change-of-pace album. Released in 2004, 04 is dominated by Sakamoto's prowess on the acoustic piano, and features excerpts from several of his scores for motion pictures (including his music for Merry Christmas, Mr. Lawrence), television commercials (such as a campaign for Louis Vuitton), and video games ("Seven Samurai: Ending Theme" was composed for the PS2 game Seven Samurai 20XX).