Euterpe: Chord+Scale Entry
Learn theory on the go!
Free · In‑App Purchases
• New: Choose your sound - Piano, Vibraphone Celesta and Organ
• Massively reduced app size - now lighter to download and install
• Refined Settings layout
Euterpe is a chord and scale training app for pianists and musicians of all levels. Play on a beautifully designed minimalist 3-octaves keyboard, identify chords in real time, and sharpen your theory with timed quiz sessions.
IDENTIFY MODE
Play any note or chord and see it identified instantly on the LCD display. Works with touch and MIDI keyboards — plug in via USB or pair via Bluetooth and start playing immediately.
CHORD TRAINING
A chord appears on the display. Find the notes, press them simultaneously, and submit. Get instant feedback with colour-coded keys showing exactly what you got right and wrong. Practice inversions, shell voicings, and rootless voicings used by jazz pianists.
SCALE TRAINING
Practice all the essential scales — major, minor, modes, pentatonics, blues and more. The app shows which notes you hit and which you missed, with interval labels to reinforce your theory.
TIMED SESSIONS
Push yourself with 1, 3 or 5-minute scored sessions. Track your progress over time with a session history graph showing your improvement across multiple sessions.
REFERENCE GUIDE
Two-octave piano diagrams for every chord and scale, transposable to any root key. Supports both letter notation and solfège.
CHOOSE YOUR SETTINGS
Note names (Solfège or letters), invert keyboard, sustain and more.
FREE TO TRY
The four basic triads and major/minor scales are free. Unlock all 25 chord types, 14 scale types, inversions and voicings with a single one-time purchase.
Ratings & Reviews
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Updated App Store screenshots.
The developer, diego indraccolo, 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
- diego indraccolo
- Size
- 58.9 MB
- Category
- Music
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - iPad
Requires iPadOS 26.2 or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Euterpe Pro $6.99
- Copyright
- © 2026 Any Alien Ltd