Listen to Scenes from the Saga of King Olaf, Op. 30: Summon now the God of Thunder (Bass) online. Scenes from the Saga of King Olaf, Op. 30: Summon now the God of Thunder (Bass) is an English language song and is sung by Alan Opie. Scenes from the Saga of King Olaf, Op. 30: Summon now the God of Thunder (Bass), from the album Elgar: Scenes from the Saga of King Olaf & The Banner of St. George, was released in the year 2015. The duration of the song is 0:57. Download English songs online from JioSaavn.