Eno

Brian Peter George St. John le Baptiste de la Salle Eno (born 15 May 1948), commonly known as Brian Eno and previously, simply as Eno. Eno is an English musician, composer, record producer, music theorist and singer, who, as a solo artist, is best known as one of the principal innovators of ambient music.

A quick guide to "Who is Brian Eno" from the Eno web site:

Who is Brian Eno?
Perhaps best known as a musician and producer, he's also an artist, professor and thinker. Music-wise, even if you haven't heard any of his own records, you may have heard his production contributions to albums by rock legends U2, David Bowie or James. In other media, his music sometimes appears in films (Trainspotting, Velvet Goldmine, Heat), television programs and commercials, and the Windows 95 start-up sound.

What kind of music does he create?
We've tried all the airy-fairy descriptions we can think of, but it narrows down to this: 1. Songs. 2. Instrumental or ambient pieces. 3. Unclassifiable.

What Eno albums would you recommend?
Always a tricky question, this one, as answers are highly subjective. EnoWeb reckons that there are two "benchmark" albums which give a good indication of the rest of Brian's output. One is Another Green World, which has songs and instrumentals. The other is Apollo: Atmospheres and Soundtracks, which has a selection of ambient pieces.