Ear Training • Reverse Ear Training • Machine Learning Coach

Politonus

Three focused apps that train your ears from different angles: multi-pitch recognition, chord structures, and scales/modes.

View all 3 apps Get the Bundle

iOS: iPhone / iPad • macOS: Mac App Store (Politonus II & III)

Quick picks

Politonus I (iOS) Politonus II (iOS) Politonus III (iOS)

Choose your focus

Start with one app, or grab the bundle for the full ear-training system.

iOS only

Politonus I

Advanced multi-pitch ear training

Recognize 1–11 notes simultaneously
Relative or perfect pitch training
Notes, degrees, or movable Do display

Get iOS (App Store)

iOS & macOS

Politonus II

Intervals • Triads • 7th chords

Reverse ear training: “find” the hidden structure
Machine learning adapts to your progress
Fast, game-like repetition

Get iOS (App Store) Get macOS (Mac App Store)

iOS & macOS

Politonus III

Scales & Modes

Modes from Ionian • Melodic Minor • Harmonic Minor
Reverse ear training: transform sound into the target scale
Machine learning progression

Get iOS (App Store) Get macOS (Mac App Store)

Complete Politonus Bundle

Politonus I, II & III — multi-pitch, chords, and scales/modes training in one bundle (iOS).

View Bundle

What is Politonus?

Politonus I — Multi-Pitch

Politonus II — Intervals/Triads/7ths

Politonus III — Scales & Modes

Key ideas

Reverse Ear Training

Instead of naming what you hear, you actively reshape / locate the target sound by ear.

Machine Learning Coach

The app adapts difficulty based on your accuracy and consistency.

Fast, Repeatable Reps

Short cycles that build instinct and speed — ideal for daily practice.

Three Skill Lenses

Multi-pitch (I), chord structures (II), scales/modes (III).

Musician-first UX

No fluff — immediate audio, clear targets, and high repetition.

Real-world payoff

Improved transcription, improvisation accuracy, and harmonic hearing.

Inside the apps

Politonus I — Multi-Pitch Recognition

Train your ear to identify stacked notes — from simple dyads to dense sonorities.

Relative or perfect pitch workflows
Degrees / notes / movable Do
Progress-driven difficulty

Politonus II — Intervals, Triads & 7ths

Reverse ear training “search” mechanics to lock in chord quality recognition.

Find the requested structure by ear
Machine-learning-driven pacing
High-rep practice for fast improvement

Politonus III — Scales & Modes

Train the sound of modes by transforming the audio into the requested scale.

Ionian / melodic minor / harmonic minor mode families
Reverse ear training with “unknown controls”
Adaptive learning curve

How musicians use Politonus

User Type	Typical Use-Cases	Best App(s)	Key Benefit
Jazz Improvisers	Hear guide tones and chord qualities faster Improve transcription accuracy Internalize mode colors by sound	I, II, III	Cleaner changes, stronger harmonic hearing
Composers / Arrangers	Identify dense voicings and clusters Audiate mode families while writing Validate chord colors quickly	I, III	Faster harmonic decisions
Teachers	Assign targeted reps for specific weak spots Track consistent improvement through levels Demonstrate hearing skills in lessons	I, II, III	Structured ear training without prep
Students	Daily 5–10 minute ear routine Build interval/chord quality recognition Learn the “sound” of modes	II → III (then I)	Faster progress with minimal time