Untitled Word Puzzle

Give it a gander! 

This grid is just how I think a good crossword should be: slightly unsettling.

This may be my last 15x TSL puzzle *ever* — depending on if we get our special Cross Campus surprise together for next week's final paper of the year — so I hope it lives up!

Linkin' Park (and spoilers...): 

• 16-across: I know these have mostly just been songs I like lately, but seriously.
• 32-across: Talk about heights!
• 43-across: Oh, I've been doing it all wrong...
• 4-down: I first discovered this genre from a Norah Sharpe/Quiara Vasquez crossword, so just passing along the favor.
• 45-down: But it's a brass waltz! (give it a minute to get going)
• And in case this puzzle's title doesn't ring a bell...