Listen to Grieg: Peer Gynt, Op. 23: Prelude to Act 4 (Morning mood) online. Grieg: Peer Gynt, Op. 23: Prelude to Act 4 (Morning mood) is an English language song and is sung by San Francisco Symphony and Edo De Waart. Grieg: Peer Gynt, Op. 23: Prelude to Act 4 (Morning mood), from the album The 101 Most Essential Classical Music Pieces Ever, was released in the year 2012. The duration of the song is 4:15. Download English songs online from JioSaavn.