There is more than one artist with this name:

1) band from Berlin, Germany.
2) Experimental jazz fusion quartet from Poland.

1) Quarter are a young band from Berlin, Germany.
By now they released one single, "Tyler" and two EPs, "The Common Fact" (2005) and "Gods and Confusions" (2006). Right now they are in the studio to work on their newest album, which will be released in 2011.
Their live experience includes gigs in front of larger audiences when supporting Sunrise Avenue, Sasha or playing at a Myspace-Live concert, which they entered after ranking 2nd in an online voting.

Band members are Florian Kanzler (vocals, piano), Christoph Oesterle (guitar, vocals), Gregor Steinbrecher (drums) and Johannes Oesterle (bass).

For further information as well as samples of their music, visit their official site or their myspace profile.

2) Experimental jazz fusion quartet comprising Klaudiusz Gigoure Bogustowicz, Maciej Borecki, Andrzej Zieniewicz and Adam getsemann. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.