"Muziekschrift." . . "The harp : a history of the harp throughout the world [and] harp notation" . . "The harp : a history of the harp throughout the world : harp notation" . . . . . . . . . . . . "The Harp : With a preface by Marcel Dupré. A history of the harp throughout the world. Harp notation" . "The harp : a history of the harp throughout the world, harp notation" . "The harp" . "The harp"@en . . . . "The Harp. With a preface by Marcel Dupré. A History of the harp throughout the world. Harp notation... [Translated into English by Rita H. Pitt.]" . . . . . . . . "History"@en . "History" . . . "The harp a history of the harp throughout the world : harp notation"@en . "Leermiddelen (vorm)" . . . . . "The harp : a history of the harp throughout the world"@en . . "La Harpe" . . "Harp History." . . "Harpen." . . "Harp." . . . . "Harpe Histoire." . . "Harp Instruction and study." . . "Harpe." . .