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).

This double disc is a collaboration between Ryuichi Sakamoto and Christian Fennesz, with the former man taking a decidedly dominant role throughout. The concept behind the album is fairly straightforward: on each night of a 24-date tour, Sakamoto wrote and performed a piano piece in a different key. By tour's end, he'd explored every possible tonal variation within Western notation. He provided these short, jewel-like solo piano melodies to Fennesz, who laid them in soft beds of gently caressing electronics. The results are very pretty…

The byproduct of a much anticipated, long-delayed, and ultimately scrapped album to have been called Technopop (and to have contained Kraftwerk's great dance single "Tour de France"), 1986's Electric Cafe suffers only slightly from lacking the thematic focus of previous Kraftwerk albums. Ironically, the '80s techno-pop wave had passed by band founders Florian Schneider and Ralf Hutter at this point, but their sly wit ("Boing Boom Tschak," "Telephone," "Sex Object") and melodic inventiveness still stand the test of time. Its segues virtually seamless, Electric Cafe plays like one mega-dance-mix, but with the tasteful restraint that has long been a Kraftwerk hallmark. This is club music for thinking men and women.

Harold Budd's discs tend to end up in the new age section of the record store, because his music is generally pleasant, quiet, and soothing. But where most new age composers go for the obvious (and sometimes saccharine) melody, Budd veers off into ambiguity; he also lacks the mystical bent that often goes along with the new age style. Instead, his compositional voice is more like that of a detached observer – one who creates beauty without getting too involved with it. By the Dawn's Early Light finds Budd writing for various combinations of viola, guitar, harp, and keyboards. All of the music is lovely, but not all of the compositions sound complete. In several cases, they sound like raw ideas rushed into the studio before their time. Guitarist Bill Nelson provides much of the interest throughout the album, and the sighing, slithery viola of Mabel Wong lends an occasional turn-of-the-century salon feel to the proceedings. The only really embarrassing moments occur when Budd – whose voice sounds like an unfortunate cross between Garrison Keillor and Kermit the Frog – reads his own poetry. Skip those tracks and you'll be fine.

Philips's collection of major works that have propelled Gavin Bryars to New Music stardom is an effective overview of his music. The longest work is his Cello Concerto, handsomely played by Julian Lloyd Webber with a big, colorful tone and sustained intensity throughout its contemplative half-hour. A comparable mood pervades the bright tintinnabulating textures of the whimsically titled One Last Bar, Then Joe Can Sing. Similar as well, in their attractive serenity and suppressed sadness, are many of the other works here, prime among them the viola concerto in all but name, The North Shore, a tone painting of the rugged cliffs of northeast England. Adnan Songbook, settings of six poems by Lebanese poet Etel Adnan, are beautifully sung by soprano Valerie Anderson and delicately scored for a small ensemble. Bryars's biggest hits, The Sinking of the Titanic and Jesus' Blood Never Failed Me Yet, have inspired him to numerous reworkings and capsuled fragments. They're represented by Titanic Lament, depicting a hymn tune dissolving into gray, watery textures, and two very different four-minute versions of Jesus' Blood, both with Tom Waits.