Original: Esslinger Orgelbuch, Bd. I. Himmels Au, licht und blau - F-Dur. Der Himmel, der ist - e-Moll. Intonationen.
Translation: Esslinger Organ, Vol. I. Various. Organ Solo sheet music. Esslinger Organ, Vol. I. Intonationen composed by Various. Edited by Helmut Volkl.