Founded by German-Hungarian musician Leslie Mándoki, the band combines elements of progressive rock with jazz music. They have produced more than a dozen albums, with many notable artists appearing as guest musicians, including Ian Anderson, Robin Gibb, Jack Bruce, Steve Lukather, Bobby Kimball, Midge Ure, Nik Kershaw, Al Di Meola, Michael and Randy Brecker, Till Brönner and Eric Burdon.