For a block of only four letters to signify anything in German may seem improbable to those who have forgotten about "nein!" The surname Grah nonetheless is linked to a musical dynasty of which Bill Grah seems most important, winning many polls as well as having a park named after him in Vienna. Brother Heinz Grah is also noted as both a bassist and trombonist. The Grah siblings have performed for decades with Fatty George, the name chosen by bandleader and clarinetist Franz Pressler.
Their father, Willi Grah, stuck to the classical side of life on the Cologne music scene, performing as both a pianist and conductor. During the '40s the Grah brothers began flexing their jazz chops in student bands, despite the scrutiny of the era's decidedly non-swinging political forces. Heinz Grah has also performed and recorded with Oscar Klein as well as on at least one of brother Bill's efforts as a leader, his credits sometimes including a bit of vocalizing.