Resolve: Reactive Ear Training

Trio Software Ltd

About this app

Resolve – Reactive Ear Training

Resolve is a modern ear-training system, developed by Tom Quayle and David Beebee, that combines a unique practice tool with a structured video course.

Instead of analyzing harmony, naming intervals, or memorizing theory, Resolve trains your ear the way musicians actually perform: by intuitively reacting to sounds in real time.

The practice tool and the course are designed to work together: the videos explain the concepts and exercises, while Resolve’s practice tool generates the harmonic material you use to train your ear on your instrument.

Together they form the Reactive Ear Training method.

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A Different Approach to Ear Training

Reactive Ear Training focuses on developing a direct connection between your ear, your fingers, and your instrument.

The practice tool generates random, non-functional chord voicings for you to react to by playing over each chord using the exercises taught in the accompanying course. The Harmonic Complexity Slider lets you tailor the sounds to your ability, from simpler, more consonant voicings at lower settings to increasingly complex and dissonant sounds higher up the slider. Practicing this way strengthens the connection between your ear, your fingers, and your instrument.

Over time this develops stronger musical instincts and a deeper, intuitive understanding of harmony that translates directly to real musical situations.

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Key Features

Created by Tom Quayle and David Beebee
Resolve was developed by Tom Quayle and David Beebee as a complete Reactive Ear Training system, combining a structured video course with an interactive practice tool designed to work together.

Integrated Video Course and Practice Tool
The course explains the Reactive Ear Training method and demonstrates the exercises, while the practice tool generates the harmonic material you respond to on your instrument.

Random Harmonic Voicings
The practice tool generates random, non-functional chord voicings for you to react to by playing over each chord using the exercises taught in the course. This approach strengthens the connection between your ear, your fingers, and your instrument.

Harmonic Complexity Slider
Tailor the sounds to your ability using the Harmonic Complexity Slider, from simpler, more consonant voicings at lower settings to increasingly complex and dissonant sounds higher up the slider.

Train Real Musical Instincts
Develop the ability to respond directly to sound in real time rather than relying on analysis, naming, or labelling.

Complements Functional Ear Training
Resolve and Reactive Ear Training is designed to complement your ongoing study of harmony, scales, chords, and functional ear training, helping you develop the ability to respond instinctively to sound in real time.

Designed for Use With Your Instrument
Resolve is built to be used while actively playing, helping connect what you hear directly to movement on your instrument.

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Who It’s For

Resolve works for:

• Guitarists
• Bassists
• Pianists
• Any instrumentalist developing their ear

Whether you’re improvising, composing, or learning music by ear, Resolve helps you develop faster and more reliable musical instincts.

What’s new

- Arpeggiation now works when enabled
- You can now rewatch course videos you've already completed
- Audio now recovers automatically when you plug in or unplug headphones, an audio interface, or a Bluetooth speaker.
- Video playback failures now show a message instead of a silent black screen.
- "Send Feedback" now pre-fills your device and app version in the email body so we can help you faster.