What is "xenochrony"

Xenochrony is a studio-based musical technique developed at an unknown date, but possibly as early as the early 1960s, by Frank Zappa, who used it on several albums. Xenochrony is executed by extracting a guitar solo or other musical part from its original context and placing it into a completely different song, in order to create an unexpected but pleasing effect. He said that this was the only way to achieve some rhythms.