Yes - Starship Trooper

From "The Yes Album", released in 1971. The title of the song comes from the 1959 novel by Robert Heinlein, Starship Troopers. "Starship Trooper" was constructed from pieces of music written separately by Anderson, Howe and Squire and is divided intro three movements:

I. Life Seeker
II. Disillusion
III. Würm

Howe had written the instrumental "Würm" section while he was in an earlier band, Squire wrote most of the "Disillusion" section and Anderson wrote most of the rest of the song, particularly "Life Seeker."

The song was heavily constructed in the recording studio, and as a result the band were never able to play it live quite the way it was recorded. The song changes mood, rhythm, tempo and style continuously, but according to Yes biographer Chris Welch, it still manages to "hang together." Authors Pete Brown and Lisa Sharken describe the "Würm" section as "a Bolero-paced chord sequence that builds into an explosive solo. They note that Howe's solo incorporates rockabilly and country music elements rather than on blues-based music with distortion as is typical for these types of solos.

The lyrics accept the fact that "no matter how much you want to get clearer visions of what you're up to, you're only going to get a certain amount."