Theo is a super simple music theory wheel.
Theo combines the Circle of Fifths and Nashville Number System but shows you only what you need. Rotate the wheel to your desired key and the window shows only the notes and chords in that key and hides the rest!

Choose your color... 8 products
Theo can help you at any skill level!
Beginner
Learn how to play chords and find chords that sound amazing together.
Intermediate
Write your own chord progressions and learn chord placement within a scale.
Advanced
Use as a handy reference tool, transpose on the fly and teach others.


Who is Theo Wheel for?
Theo will work great for...
Guitarist
Bassist
Keyboardist
Pianist
Songwriter
Producer
Teacher
Worship Leader
Jam Session
Studio
Pick your style!
The genre themed illustrations were designed to personalize your music theory wheel with your own taste in music. Each wheel has the same exact information and is not limited to that type of music.

Choose your color... 8 products
The Theo Wheel is rad.
The Theo Wheel is rad. I’m not good at music theory and never had any formal training so it’s a really easy way for someone like me to quickly find the note I want to play in the correct key if I’m looking for a specific harmony. I can see myself referencing that wheel a lot when I am writing.
- JB BrubakerAugust Burns Red
2x Grammy Nominated Artist
Theo Wheel is everything on one reference tool (IE: Circle of Fifths, Keys, Intervals, Nashville Number System, etc). It’s amazing!!
- Steve S.Very handy little tool.
Recently decided to purchase one (your Facebook adverts are effective) and I love it! The quality is really good, and it feels like it will last a lifetime if you are not too crazy rough with it. Very handy little tool. Wish I would have had this at uni for my theory classes!
- Sophia WillowoodIt’s like a calculator for chords, transposing songs and songwriting in general. Love it.
- Hayley K.Theo can help you with all this (and more!)
