My mother had quite of a collection of classical records. I didn’t care for opera, but many instrumentals I liked quite a bit. Mussorgsky’s “Night On Bald Mountain” pretty intense I thought at the time. Many others, Rachmaninoff, Prokofiev, etc.
Dad was born in Italy, so my earliest listening was Italian opera. As an old picker told me, “There’s no such thing as bad music, just bad musicians.”