NoteSpotter
Music
Only for Mac
Free · In‑App Purchases
Mac
See what you play - instantly. NoteSpotter turns your MIDI keyboard into a real-time music coach with staff notation, chord names, and a live keyboard view.
NoteSpotter is a real-time music visualization app for macOS that turns your MIDI keyboard or digital piano into a powerful learning, practice, and ear-training companion.
The moment you press a key, NoteSpotter shows you four things at once:
- Staff Notation: notes appear in real time on the grand staff (treble + bass clef), exactly as you play them.
- Chord Names: detected chord names are displayed in large text. NoteSpotter recognizes everything from basic triads to advanced jazz voicings: maj7, m7, 9, 11, 13, sus4, dim, dim7, m7b5, altered dominants (7b9, 7#9, 7#11, 7b13), slash chords (G/B, C/E), and more.
- On-Screen Keyboard: a live 49/61/76/88-key keyboard highlights every note you press.
- Note Names: pressed notes are listed by name (C4, Eb5, etc.) in your chosen notation.
Built for musicians of every level:
- Beginners: learn note names and the layout of the staff while you play.
- Students: build chord recognition and ear-training skills.
- Composers & Songwriters: quickly identify the chords you stumble upon.
- Jazz & Pop Players: confirm complex voicings, tensions, and substitutions in real time.
- Teachers: use NoteSpotter as a classroom visual aid.
Features:
- Real-time MIDI input via CoreMIDI - USB MIDI and Bluetooth MIDI both supported.
- Ultra-low latency, optimized for native macOS performance.
- Multiple note-name notations: English (C D E), Japanese (Ha Ni Ho), and Italian (Do Re Mi).
- Enharmonic switching: sharp, flat, or auto (key-aware).
- Sustain pedal and pitch-bend support.
- Customizable keyboard range and dark/light themes.
- "Always on top" window option for practice sessions.
- Detachable score, chord, and keyboard windows.
Privacy first:
NoteSpotter does not collect, transmit, or store any personal data. Everything happens on your Mac. We use no analytics, no advertising, no third-party SDKs.
Try Free for 30 Days:
NoteSpotter is free to use for 30 days. After the trial period, a one-time in-app purchase (NoteSpotter Premium) unlocks permanent access to all features on every Mac signed in to your Apple ID.
Requirements:
- macOS 13 (Ventura) or later
- A MIDI keyboard or controller connected via USB or Bluetooth
Note: NoteSpotter is a real-time visualizer for live MIDI input. It does not play back MIDI files, score notation files, or audio recordings.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
bugfix
The developer, Kubo FUMIO, 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
- Kubo FUMIO
- Size
- 2.2 MB
- Category
- Music
- Compatibility
Requires macOS 14.6 or later.
- Mac
Requires macOS 14.6 or later.
- Mac
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- NoteSpotter Premium $4.99
- Copyright
- © 2026 Kubo FUMIO
