Tonal Harmony L1 - The Fan

The Fan is a drone-based ear training app for exploring and internalizing intervals. It presents the seven diatonic tones in two arrays: The Fan organized from consonance to dissonance, and The Curtain arranged in scale order while also distinguishing chord-tones from non-chord tones. Each is an interactive diagram wherein you can tap individual tones and hear them against a sustained vocal drone. To see how your ear training is coming along, the app includes a fun and challenging test mode.

Features:

12 tonal centers (all keys)
7 diatonic modes
Male and female choirs
Closed and open syllable: Mmh & Aah
Adjustable drone/chord mix balance
Function and note name label modes
4 color schemes
Works offline — no internet required

How it works:
Start the drone, then tap spheres in the fan or curtain to hear chord tones.

Test mode: Start drone and press begin. Listen to the interval presented. Select your answer. When the timer runs out, you’ll receive feedback as to the accuracy of your selections. There are 10 questions per round.

Level 1 of The Tonal Harmony Series:

L1 — The Fan & The Curtain (simple intervals)
L2 — The Tower (intervals and chords)
L3 — The Moons (chords and progressions)