I believe The Beatles: Rock Band came the closest to being perfect. Eveything about that game was just beautifully done and the only things missing was Pro Drums, an option for Keys, and a few more Beatle songs (Hey Jude, Strawberry Fields Forever, Yesterday etc. etc.)
Hmm, I mean, maybe there’s a mod that adds objective markers? For most of us it’s kinda fun that you actually need to pay attention to the directions people give you, and that every once in a while they’re outright wrong.