Originalus: Duo Sonate. Duo Sonate composed by Jaques Christian M. Widerkehr. Oboe sheet music. Piano sheet music. Edited by James Brown.
Vertimas: Obojus natos. Pianinas natos. Redagavo James Brown. Obojui, fortepijonui. Tai leidimas. minkštas. 40 puslapiai. Paskelbta Musica rara.