See the cycle of 4ths, 5ths, key signatures, parallel minors and roman numerals!
Use this application to see what chords belong to which number in a key.
Click the desired key to see what chords belong to it and, more importantly, what number the different chords have. By thinking of chords as numbers (roman numerals) you lay the foundation to understanding music.
5 theory tools in one
The SWS combine five theory tools in one.
- Cycle Of 4th
- Cycle of 5th
- What chord belong to what key
- Parallel minor and major chords
- Roman numerals
You’ll learn how to use the SWS to its full potential when you study the chord progressions of famous songs in the beginner course.