Note Forge: Music Theory
Music Theory Practice Tool
Free · Designed for iPad. Not verified for macOS.
Note Forge is a free music education tool from Nathaniel School of Music, designed to make music theory practice engaging and effective for musicians of all levels.
FOUR POWERFUL PRACTICE MODES
Random Note Generator
Drill sight-reading and ear training with random note sequences. Choose difficulty (beginner or intermediate), filter by white keys, accidentals, or all notes, and control tempo, subdivision, and swing feel.
Chord Progressions
Hear and study the world's most important chord progressions: major, harmonic minor, Andalusian, Dorian, pop, and jazz. Select any key, set your tempo, and let the arpeggiated chords guide your ear.
Circle of Fifths Patterns
Master scale relationships through geometric patterns traced across the circle of fifths — clockwise, counterclockwise, triangles, squares, whole-tone, diminished, and chromatic patterns in any starting key.
Music Glossary
A comprehensive in-app reference covering all intervals, scales, modes, and chord progressions — always at your fingertips, no internet required.
BUILT FOR MUSICIANS
• Real synthesised audio — piano, sine, triangle, sawtooth, and square wave tones
• Precise Web Audio scheduling for rock-solid timing at any BPM
• Metronome with accent and subdivision control
• Swing feel toggle for jazz and blues practice
• Dark and light themes
• All settings saved between sessions
WORKS FOR EVERY INSTRUMENT
Piano · Guitar · Bass · Violin · Saxophone · Voice · Any instrument that reads music
Free. No subscription. No ads. Built by musicians, for musicians.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improves iOS audio playback reliability and native app behavior.
The developer, Jason Zachariah, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jason Zachariah
- Size
- 2.9 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nathaniel School of Music