Mouse P.I. for Hire Piano Puzzle Solutions (All Locations & Answers)

Having trouble with the piano puzzles in Mouse P.I. for Hire? The game has two of them, and each one needs you to play a certain set of notes to open up new areas or find hidden items. This guide will show you the solution to every piano puzzle, tell you where to find them, and explain what you’ll earn when you solve them.

The Curdsville Nuthouse piano uses C-A-G-E. The Quagmire piano uses A-C-E-G.

How Piano Puzzles Work in Mouse P.I. for Hire

In the game Mouse P.I. for Hire, the solution to each piano puzzle is always found written down on a note located in the same spot.

These puzzles rely less on random guessing and more on thoroughly checking your surroundings. If you discover a piano without an obvious hint, take the time to look around before attempting to solve it.

All Piano Puzzle Solutions

Puzzle	Mission	Sequence	Required for 100%?
Curdsville Nuthouse Piano	One Flew	C-A-G-E	Yes
Quagmire Piano	Swamp Oddity	A-C-E-G	Yes

Curdsville Nuthouse Piano Puzzle (One Flew)

There is a piano puzzle in the Curdsville Nuthouse during the One Flew mission.

Solution: C-A-G-E

Once you have the Jar-Head weapon, continue following the Detective’s Brush. When you reach Millie, go across the bridge and look to your left to find the piano.

To lower the bridge and reach the path to Gloria, play the piano sequence C-A-G-E. You need to do this to finish the ‘Behind the Nuts’ side job, which asks you to take a picture of Gloria.

This piano puzzle is unique because it’s specifically connected to a side quest. You can find a detailed solution in our Behind the Nuts walkthrough.

The Quagmire Piano Puzzle (Swamp Oddity)

There is a piano in the Strange Cabin’s music room during the Swamp Oddity mission.

Solution: A-C-E-G

Go into the music room and play the notes A-C-E-G on the piano. Then, walk through the door behind you. You’ll find a closet – go inside, and it will lead you to a secret room where you can find a Baseball Card.

For a detailed guide on solving the piano puzzle in the Swamp Oddity mission, see our complete walkthrough.

Are Piano Puzzles Required for 100% Completion?

To fully complete the game, you’ll need to solve a few piano puzzles. Specifically, completing the piano puzzle in Curdsville Nuthouse is necessary to finish the side job “Behind the Nuts,” which unlocks an achievement.

Solving the piano puzzle in the Swamp Oddity will give you a Baseball Card, which is needed to fully complete the game. If you don’t get it from the puzzle, you can also purchase it at either the Soup to Nuts or a Roadhouse.

Why Piano Puzzle Solutions Are Easy to Miss

Okay, so I’ve been running into these piano puzzles in the game, and they’re tough to find. The pianos aren’t just sitting out in the open – they’re hidden in these little side areas, totally off the beaten path. And the clues? Forget about it! They’re these tiny notes that are super easy to miss if you’re not really looking. Honestly, I almost walked right past a couple of them!

FAQ

What are the piano puzzle solutions in Mouse P.I. for Hire?

The known solutions are C-A-G-E (Curdsville Nuthouse) and A-C-E-G (The Quagmire).

Where is the piano in the Curdsville Nuthouse?

Past Millie after getting the Jar-Head weapon.

Where is the piano in the Quagmire?

In the Strange Cabin’s music room.

Do piano puzzles unlock collectibles?

Yes. The Swamp Oddity puzzle leads to a Baseball Card needed for 100% completion.

Can you miss piano puzzles?

Yeah, it’s totally easy to overlook those puzzles! You really have to mess around with the piano or hunt for the hints to figure out the right order to solve them. I almost walked right past them!

2026-04-30 17:36