There are 3 bands with the name Revision:

1) Revision - Funk Band - Ithaca, NY - USA
The funk trio consisting of John Petronzio (keys/vocals), Devon Reehl (on percussion) and Nick Bullock (guitar/vocals) is based out of Ithaca, NY.

In the matter of a few years, Revision has averaged over 150 shows annually and has shared the stage with the likes of Bela Fleck, George Clinton, Soulive, Derek Trucks and many others. In 2004 they were added to the increasinly impressive lineup of the Homegrown Music Network.

The band recently purchased a diesel van and converted it to run on vegetable oil. Used fryer grease that restaurants throw away now powers this group as they continue a consistent tour schedule throughout the Northeast, Southeast, and Midwest.

Based in the thriving college town of Ithaca NY, Revision quickly grew a strong regional following through relentless touring, targeting mainly college markets. In November 2004 they released their latest record What It Is on Relevant Records.
Work on a new album is slated to start this summer.

Website: http://www.revisionmusic.com

Discography
Broken Art (2002)
What It Will Be (2003) EP
What It Is (2004)

2) Revision - Rock band - Vlaardignen, ZH - NL

The dutch lyrical rockband Revision formed in Vlaardingen, NL in 2003. The lineup consists of Allart Hoekstra (Vocals and leadguitar), Mark Trooster (Base and backing vocals) and Michael Franzen (drums).

You can listen their tracks at their official website www.revisionband.nl

Discography:
May 3rd 2008 they released their first EP: Heavy Light, at the Exit in Rotterdam, NL.

3) Revision - French Hardcore producer - Location unknown

is a French hardcore producer. No more info available at this time.