Listen to Pictures at an Exhibition: Promenade I - I. Gnomus online. Pictures at an Exhibition: Promenade I - I. Gnomus is an Instrumental language song and is sung by Valery Vishnevsky. Pictures at an Exhibition: Promenade I - I. Gnomus, from the album Favorite Piano Pieces, was released in the year 2017. The duration of the song is 4:03. Download Instrumental songs online from JioSaavn.