The Circle of 5ths Tool strengthens your understanding of music theory using visual shapes and scale degrees. It trains recognition, speed, and accuracy, helping you spot patterns and apply your knowledge with confidence.

Master Music Keys with Shapes and Degrees

Nashville Music School
Harmony Lab

Circle of Fifths

Explore keys, hear tonal center, view scale notes, chords, functions, and common progressions.

Pro Tool
Major Key

C

C major

C D E F G A B

I ii iii IV V vi vii°

Key Details
C major
Notes
C D E F G A B
Roman numerals
I ii iii IV V vi vii°
Relative minor
A minor
Diatonic chords
C Dm Em F G Am Bdim
Primary chords
C · F · G
Tension map
Tonic: I vi · Predominant: ii IV · Dominant: V vii°
Popular moves
I V vi IV · ii V I · I IV V
Listen and Practice
Quick Actions
View Major
Family Natural
Focus Tonal center
Made with 💛 by Nashville Music School™

FAQs

It is built for NMS students and independent musicians who want to test and reinforce their knowledge of music theory in a practical, theoretical-focused way. It supports beginners through advanced players.

1

Who is this designed for?

How does this help me become a better musician?

2

The tool strengthens recognition speed, theoretical clarity, and decision-making under pressure. This improves rehearsal readiness, set preparation, improvisation, and communication with other musicians.

Does it include the Nashville Number System?

3

Yes. The Nashville Number System is a core part of the tool’s functionality.

Can this prepare me for live performance situations?

4

Yes. This tool helps you you memorize the 12 keys and its 7 notes which is great to have ready for live performances.