iPhone Screenshots


Sit back, relax, and enjoy the musical experience of the Circle of Fifths, a 2048-style game that can continue forever. How many times around the circle can you go?

Slide the tiles to combine matching tiles that turn into the next note in the Circle of Fifths, playing the notes as you go.

Play in Fifths to go forward around the circle, and play in Fourths to go in reverse. Do you have what it takes to unlock Fourths mode?

Try it now to start memorizing the circle of fifths. Visit calebhugo.com to learn more about the circle of fifths, to play online, and for more musical and educational games!

What’s New

Version 1.1

Beginning to work on some performance improvements. Starting small with this release :) More features in the works soon!

Ratings and Reviews

3.3 out of 5
20 Ratings
20 Ratings
Amanda Chain ,

Erases my progress

Ive been playing this game since it came out (on one phone or another) and i got quite far on this version--past 200%. Before this it had taken me several months to get to the 150% mark you must pass to play it in fourths mode. But i got past it and was enjoying fourths mode for a while; then i didnt touch the game for a few weeks. When i opened it again on a whim, all my progress had been erased :^( i was no longer able to play in fourths mode but eventually i got to 150% and unlocked it again. Then just this past week it has happened again ! I love this game, love the different colors and notations and fourths mode, it helped me back when i was taking a music theory class. Its addicting so imma still play it but this was frustrating as hell. I hope it doesnt get erased again.

@zachburnham ,

Awesome, helpful, beautiful

When we first put sounds into this game it instantly became something more than just a game. This is an experience you can't afford to miss. And now with being able contrast Fifths mode with Fourths mode, it's incredible.

Prm1016 ,

Good design...

I love the design, color scheme, and the sounds, but it's SO. SLOW. I know exactly how to play the game unlike some of the reviews, but it feels so clunky to try to swipe two or three times before it catches up and let's me actually move. Like trying to stream with a slow connection


Zach Burnham
19.7 MB
Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2014 Caleb Hugo


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