The composition is based on quotations from Heinrich Ignaz Franz Biber, August Kühnel, Johann Paul von Westhoff, Johann Georg Pisendel, and Johann Sebastian Bach, as well as self-quotations. Passage refers to Passacaglia (specifically the Passacaglia by Biber, which is the 16th sonata of the Rosary Sonatas and generally considered to be a forerunner of Bach’s Chaconne); copy refers to a quote by composer Johannes Kreidler: “Composing for violin means to copy.”