Modest Musssorgsky’s claim to fame is, unfortunately, that many others have ruined his original work. They revised it, re-orchestrated it, sugar-coated it, romanticized it, … killed it.
If you want to know what Mussorgsky really sounded like, search for the original orchestration (very few people have ever dared record it) of, for example, “A Night on the Bald Mountain”, which is in-your-face, visceral and brass-heavy. It is one of my favorite compositions.
Don’t go for the totally vapid Rimsky-Korsakoff orchestration.
Unearth a recording of the original.
It is more than worth it, especially at full volume across three rooms.
It’s music to jump out of bed to in the mornings.
Enjoy the hunt.