Listen to 山の魔王の宮殿にて・In the Hall of the Mountain King (オルゴール Music Box) online. 山の魔王の宮殿にて・In the Hall of the Mountain King (オルゴール Music Box) is an Instrumental language song and is sung by Relaxu and Relaxu Box. 山の魔王の宮殿にて・In the Hall of the Mountain King (オルゴール Music Box), from the album Classical MusicBox Collection, Vol. 1, was released in the year 2025. The duration of the song is 1:24. Download Instrumental songs online from JioSaavn.