Listen to Accordeon Medley No 9: Oh! Heideroslein / Down by the Riverside / The Happy Wanderer online. Accordeon Medley No 9: Oh! Heideroslein / Down by the Riverside / The Happy Wanderer is an Instrumental language song and is sung by The 3 Jacksons. Accordeon Medley No 9: Oh! Heideroslein / Down by the Riverside / The Happy Wanderer, from the album Accordionmania, Vol. 2, was released in the year 2021. The duration of the song is 3:05. Download Instrumental songs online from JioSaavn.