Listen to Children's Corner: I. Dr. Gradus ad Parnassum - 1 online. Children's Corner: I. Dr. Gradus ad Parnassum - 1 is an English language song and is sung by Peter Schmalfuss. Children's Corner: I. Dr. Gradus ad Parnassum - 1, from the album Discover Debussy, was released in the year 2014. The duration of the song is 2:26. Download English songs online from JioSaavn.