# Ear Training L3 - The Moons — Ear Training Exploration > Drone-based ear training app for chords and progressions. (iPhone/iPad app by Paul Russell.) - Source: https://appshunter.io/ios/app/ear-training-l3-the-moons/id6760356899 (this page in markdown: same URL + `.md`) - Developer: [Paul Russell](https://appshunter.io/developer/1883542878) - Category: Education, Music - Price: $7.99 (on sale, was $9.99) - Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 32 MB - Languages: American English - Released: 2026-07-07 - Data updated: 2026-08-22 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/ear-training-l3-the-moons/id6760356899/reviews.md ## What is Ear Training L3? The Moons is a drone-based ear training app for exploring and internalizing chords, and chord progressions. It presents the seven diatonic chords as an interactive moons diagram where you can tap individual chords in a key and hear them against a sustained vocal drone. In progressions mode you can design progressions to hear how they move and flow. To see how your ear training is coming along, the app includes a two fun and challenging test modes. Features: 12 tonal centers (all keys) 7 modes: Major, Mixolydian, Lydian, Natural Minor, Harmonic Minor, Dorian, Phrygian 7 diatonic chords with roles displayed visually Two discovery modes: Chords & Chord Progressions Two fun and challenging test modes: Chords & Progressions Chord Progression Designer MIDI Visualizer - see what you play displayed Male and female choirs Real Acoustic Cello Adjustable drone/chord mix balance Function and note name label modes 4 color schemes Works offline — no internet required How it works: Chords Mode: Start the drone, then tap spheres of the moons to hear chords. Use the arrow selector to shift to the closest inversion either up or down. In male choir mode, the radio buttons above give melody tones. In female choir mode, the same buttons trigger a bass tone below. Progressions Mode: Start the drone. Select a chord then press “Add” to add it to the progression. Repeat up to four times. Press play to hear the progression. The slider below the progression speeds up or slows down the tempo. Activate “Loop” to loop the progression. Chords Test Mode: Start drone, choose levels, then begin. Listen to the chord played, click the corresponding moon to select, then press the checkmark to commit. Once you’ve commited, or when the timer runs out, you’ll receive feedback as to the accuracy of your selections. 3 levels in Chord Test Mode: 1) Root position chords 2) 1st Inversions 3) 2nd inversions. Chord Progressions Test Mode: Start drone, choose levels, then begin. Listen to the chord progression played, click a series of 3 corresponding moons, first selecting then commiting each of the chords. Once you’ve commited, or when the timer runs out, you’ll receive feedback as to the accuracy of your selections. 4 levels in Chord Progression Mode: 1) Simple Cadences (starting at tonic chord) 2) Deceptive Cadences (starting at tonic chord) 3) Resolutions (beginning on non-tonic chords) 4) Unresolved Progressions Level 3 of The Tonal Harmony Series: L1 — The Fan & The Curtain (simple intervals) L2 — The Tower (intervals, chords, and connections) L3 — The Moons (chords and chord progressions) ## Key features - Interactive moons diagram for chords - Chord progression designer - Two test modes (Chords & Progressions) - 12 tonal centers and 5 modes - Adjustable drone/chord mix balance - Works offline ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/ear-training-l3-the-moons/id6760356899/reviews.md ### 5/5 — Great app. Deepening my understanding of music. *2026-08-16* This app is not rote. Instead it’s an enjoyable way to deepen in understanding of music. The visual way it is laid out helps me understand the structure of music better. And the exercises help me to really feel and experience the music in a way that feel applicable. It is helping me understand and enjoy music more deeply, and helping me deepen in my own composition and musical creativity. ### 5/5 — Enjoyable app! *2026-08-14* I am new to ear training and have the other two apps in the series as well. I totally dig the visuals. Helps put form to the sound. ## Frequently asked questions about Ear Training L3 ### What is Tonal Harmony L3 - The Moons? Tonal Harmony L3 - The Moons is a drone-based ear training application designed to help users explore and internalize chords and chord progressions. It features an interactive moons diagram and progression designer, along with test modes to assess learning. ### What are the learning modes in Tonal Harmony L3 - The Moons? The app offers two primary test modes: Chords Test Mode, which involves identifying played chords, and Chord Progressions Test Mode, where users identify a series of chords in a progression. Each mode has multiple levels of difficulty. ### Can I use Tonal Harmony L3 - The Moons offline? Yes, Tonal Harmony L3 - The Moons works offline, meaning no internet connection is required to use its features. This makes it convenient for practice anywhere. ### What music theory concepts does Tonal Harmony L3 - The Moons cover? The app focuses on chords and chord progressions within 12 tonal centers and 5 different musical modes (Major, Mixolydian, Dorian, Natural Minor, Harmonic Minor). It visually displays the seven diatonic chords and their roles. ### What is the price of Tonal Harmony L3 - The Moons? Tonal Harmony L3 - The Moons is a paid application, priced at $12.99. This one-time purchase grants access to all its features. ### What devices is Tonal Harmony L3 - The Moons compatible with? Tonal Harmony L3 - The Moons is available for iPhone, iPad, and iPod. It is designed for iOS devices. ### How often is Tonal Harmony L3 - The Moons updated? The app was last updated on July 13, 2026, with version 1.2. While specific update frequency isn't detailed, this indicates ongoing support and development. ### Does Tonal Harmony L3 - The Moons have ads? No, Tonal Harmony L3 - The Moons does not contain advertisements. As a paid application, it offers an uninterrupted learning experience. ## Version history (last 5 releases) ### 2.3 — 2026-08-15 MIDI Visualizer! Connect any MIDI instrument, direct or via Bluetooth, and see your playing light up The Moons. ### 2.2 — 2026-08-09 now compatible with macOS ### 2.1 — 2026-08-05 New live choir recordings Acoustic cello - live recorded Lydian & Phrygian modes added ### 1.5 — 2026-07-20 title screen glow-up, controls guide, video walk-through/tutorial ### 1.4 — 2026-07-18 Updated app name and weblinks. Please rate and review if you enjoy! ## More apps by Paul Russell - [Ear Training L1 - The Fan](https://appshunter.io/ios/app/ear-training-l1-the-fan/id6760268842) - [Ear Training L2 - The Tower](https://appshunter.io/ios/app/ear-training-l2-the-tower/id6760317476) All apps by Paul Russell: https://appshunter.io/developer/1883542878 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*