Chord vs Note Carpet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chord
Unlock musical creativity with a suite of tools for composing and practicing. Generate chord progressions, practice notation, train your ear, and even use your device as a MIDI keyboard. Includes a macOS version for seamless integration.
- Chord progression generation with inversions and extensions
- Live playback as piano or synth
- MIDI output to macOS
- Guitar chord finder
- Notation reading practice
- Ear training for intervals and voice
- macOS version included
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This app plus your ears equals complete freedom in writing music! A comprehensive set of tools for any musician: * Chord Progression: Create beautiful chord progressions with full flexibility - use inversions, sus2, sus4, 7th, 9th, and more. Enjoy live playback as piano or synth, or send MIDI directly to your macOS computer! * Guitar Chords - helps you find and browse guitar chords. * MIDI Keyboard: Transform your phone into a MIDI keyboard for your macOS computer (compatible with macOS Catalina and newer). * Notation Practice: Practice reading notes in both treble and bass clefs. * Chord Calculation: Help you learn how to calculate chords and progressions. * Interval Practice: Practice recognizing and comparing musical intervals by ear. * Voice & Ear Training: Simple, effective tools for voice practice and ear training. * Harmonic Match - helps you mix tracks in key while DJing. * Guitar tuner - helps you tune your guitar to the most popular tunings. * Modulation Pad - Helps when using a compact MIDI keyboard without built-in pitch and modulation controls. Also includes a sustain pedal (compatible with macOS Catalina and newer). Plus, enjoy the macOS version included with your purchase!
Note Carpet
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The Note Carpet is an innovative music theory teaching aid. You can use it to illustrate tonal relationships and discuss musical issues. * Move notes to set a key and modulate. * Recognize the scale's own notes. * Play notes and chords with a simple sound. * Recognize enharmonically interchangeable notes. * Understand the relationships between notation, fifth relationships, keys, degrees. The Note Carpet consists of an immobile checkerboard-like grid with a highlighted center and a pattern of note names that can be moved against it. By shifting notes into the center you get: * The scale degrees of the notes, colored and numbered left and right. * The root, the red note in the center. * The mode, which you can recognize by the solmization syllable of the root (below and above). Do is major. La is minor. * The key (root and mode). * The scale and its accidentals (right). * The range of in-scale notes (white) and out-of-scale notes (black). * Aspects of musical notation: white notes can be written without accidentals, black notes must be written with accidentals at least once per bar. For a better understanding, common features of the notes are also displayed: * At the left, the root note of all notes in the line, i.e. without alteration. The sequence corresponds to the staff lines and spaces. * At the bottom, the note name without octave number. The sequence corresponds to the fifth relationships of the notes. At the bottom right is a number that encodes the projection of the key onto the mode circle of fifths. If you install the "Mode Cirkel" app or the "MIDI Solfa Mode-Go-Round" app, a button is displayed here that sends the current key to the corresponding app. There you can study further aspects of music theory. More information about the app and the didactic use of the Note Carpet is available at https://sites.google.com/view/notecarpetapp.
Screenshots
Verdict
Chord and Note Carpet are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Chord | Note Carpet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (81 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 81 — better | — |
| Update frequency | Every 4 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPad, iPod, Mac |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 46 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Roman Sevastyanov | Dr. Garbers Softwareentwicklung |
In-app purchases
Chord
No in-app purchases
Note Carpet
No in-app purchases









