Harmonize: Ear Training
Toshihiko Arai
4.2 stars558 reviews50,000+Free
MusicEveryoneVersion 26.7.11Updated 7/11/2026, 4:20:07 AM
Open in Store🎵 Harmonize is a fun ear-training game where you sharpen your relative pitch together with the cute mascots Ebifurya and Kakifurya.
Against a reference tone, slide your finger to “harmonize” musical intervals — unison, octave, perfect fifth/fourth, major/minor thirds and sixths — and match them exactly. The closer to 0 cents, the higher your score. Collect three stars to move on to the next stage!
▼ Simple to play
• Listen carefully to the model tone
• Slide up and down to match the pitch
• Tap GO to be judged — see how many cents off you were and your stars
▼ Modes
• Double Stop: harmonize two notes (8 categories)
• Chords: real 3–4 voice chords (unlock by collecting stars)
• Moon: a memory mode where the model tone fades away — harmonize from memory alone
• Rhythm: tap the offbeats along with the metronome. 6 meters from march to sixteenth notes × 8 sound packs incl. drums. Replay your rhythm and compare it with the example on the result screen
• One-Shot Challenge: 5 weekly questions, the model plays only once — compete on the online weekly leaderboard
• Tutorial: guided practice, perfect for beginners
▼ Thoughtful features
• 14 instrument tones (piano, organ, violin, trumpet, shakuhachi, flute and more)
• Adjustable A reference (440–446 Hz)
• Note-name notation: English / German / Japanese / Italian
• Toggle background animation and guide bubbles
• Per-voice volume and vibrato
• Rhythm timing calibration — accurate judgement even with Bluetooth earphones
• Optional "Remove Ads" in-app purchase
▼ 7 languages
English, 日本語, Français, Deutsch, Español, 简体中文, 한국어 — switch anytime in Settings.
For choirs, wind ensembles, orchestras, bands, singer-songwriters — anyone who wants to harmonize more accurately. Train your ear, anytime!
Against a reference tone, slide your finger to “harmonize” musical intervals — unison, octave, perfect fifth/fourth, major/minor thirds and sixths — and match them exactly. The closer to 0 cents, the higher your score. Collect three stars to move on to the next stage!
▼ Simple to play
• Listen carefully to the model tone
• Slide up and down to match the pitch
• Tap GO to be judged — see how many cents off you were and your stars
▼ Modes
• Double Stop: harmonize two notes (8 categories)
• Chords: real 3–4 voice chords (unlock by collecting stars)
• Moon: a memory mode where the model tone fades away — harmonize from memory alone
• Rhythm: tap the offbeats along with the metronome. 6 meters from march to sixteenth notes × 8 sound packs incl. drums. Replay your rhythm and compare it with the example on the result screen
• One-Shot Challenge: 5 weekly questions, the model plays only once — compete on the online weekly leaderboard
• Tutorial: guided practice, perfect for beginners
▼ Thoughtful features
• 14 instrument tones (piano, organ, violin, trumpet, shakuhachi, flute and more)
• Adjustable A reference (440–446 Hz)
• Note-name notation: English / German / Japanese / Italian
• Toggle background animation and guide bubbles
• Per-voice volume and vibrato
• Rhythm timing calibration — accurate judgement even with Bluetooth earphones
• Optional "Remove Ads" in-app purchase
▼ 7 languages
English, 日本語, Français, Deutsch, Español, 简体中文, 한국어 — switch anytime in Settings.
For choirs, wind ensembles, orchestras, bands, singer-songwriters — anyone who wants to harmonize more accurately. Train your ear, anytime!
Developer email
i.officearai@gmail.com
Developer website
https://s.araisun.com/harmonize-pr.htmlReleased
Jan 6, 2017
Current version
26.7.11
Android version
5.0
Reviews & Ratings
4.2
out of 5
5
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1
🙂 Mostly positive reviews
558 reviews