Maybe one should play Wagner’s Der Ring der Nibelungen (Ring Cycle - a series of, like, 4-6 great operas, performed, one after the other, on my 13 CD copy, I have the whole Ring Cycle (Die Walkure, Lohengrin, Gotterdammerung and, about 3 others). That would be a good way to give your infant some culture, even though the baby doesn’t know WTF “culture” means (or how to say it)! But it could set the stage for a possible, if this went the way one hoped, appreciation for music.