Looking up music on my phone, as one sometimes does, and was faintly amused by the results. I was looking for Grieg's Peer Gynt, and these were the suggested additional videos:
Mozart, Requiem in D
Holst, The Planets
Dvorak, New World Symphony
Tchaikovsky, 1812 Overture
Though I don't know very much about classical music, I know enough to recognize this as an algorithm's equivalent of saying "you have so little taste here we will throw up only the most widely-known and pandering-to-audience options so as not to make you come out of your shell, Philistine."