The Canadian musician Gordon Grdina is a specialist on the oud and the guitar. With his band The Marrow, Grdina intertwines the delicate modal sounds of the Arabic maqam and Persian dastgah with the harmonic versatility of modern improvised music. ‘Gordon Grdina makes music that is important to humanity,’ wrote All About Jazz. The violinist Mark Feldman, who played on John Zorn's Bar Kokhba, also played with The Marrow.