What it does
Kaizen9's Functional Ear Trainer practises recognition of scale tones within a musical key.
Listen for the note's function against the tonal context rather than only measuring the distance between two pitches. That focus can complement interval drills when learning melodies by ear. The mobile app implements Alain Benbassat's approach and is listed by its developer with in-app purchases.
Strengths
- Key-context note recognition
Best for
- Players connecting heard notes with scale functions
Sources
- Functional Ear Trainer - Apps on Google Play (Oct 26, 2026)