Mantis

Mantis is a studio album by progressive rock band Umphrey's McGee. The album was released on January 20, 2009. The album became available for pre-order on October 27, 2008.

Along with the pre-order announcement came information that unique bonus content would be available and more content would unlock depending on how many pre-orders were placed. This unusual method of distribution has been hailed as the "perfect way to implement a pre-order campaign".

Unlike previous studio releases, Mantis is almost completely composed of material that the band has yet to play live. Several tracks feature sections similar to previous live improvisations (known to the band and fans as "Jimmy Stewarts"). However, the band has made a concerted effort to keep the album's material under wraps until the release date.

- Wikipedia