techniques), whilst other times they work together with the keyboards in counterpoint and trade-offs, in addition to bass solos. All the while, Donati's drum work is dynamic and makes frequent use of polyrhythms, metric modulation and shifting tempos which fuse the styles of heavy metal, jazz and progressive rock. Discography 2000: Universe 2002: Live from Oz (live) 2002: MoonBabies 2007: Quantum Band members Last members Derek Sherinian – keyboard (2000–2011) Virgil Donati – drums (2000–2011) Alex Machacek – guitar (2009–2011) Dave LaRue – bass (2008–2011) Past members Tony MacAlpine – guitar (2000–2006) Brett Garsed - guitar (2006–2009) Tom Kennedy – bass (2000–2003) Ric Fierabracci – bass (2003–2006) Rufus Philpot – bass (2006–2008) References External links Official website Planet X at AllMusic American progressive metal musical groups Heavy metal supergroups Musical groups established in 2000 Jazz fusion ensembles Inside Out Music artists