I was practicing the spiritual "Joshua Fought the Battle of Jericho" for my piano lesson and thought that it sounded similar to Grieg's "In the Hall of the Mountain King". I downloaded the sheet music and found that both start with a rising partial scale followed by three three-beat measures. Both are in minor keys, "Jericho" in B minor and "Mountain King" in A minor. I googled around to see if Grieg had been influenced by "Jericho" (which was written years earlier) but found nothing on the subject. Not sure if spirituals were popular or even known in Norway in the late 1800's. Any clues will be appreciated.