Guillaume Pasch (born in 1985) studied concert violin at the University of Music and Performing Arts Vienna, as well as at the Tchaikovsky Conservatory in Moscow, Russia. His teachers included Dora Schwarzberg, Josef Hell, Marina Keselman, and Siegfried Führlinger. Chamber music lessons with Valentin Erben (member of the Alban Berg Quartet) inspired Guillaume to found the Arco Quartet Vienna.