Harmonize

🎵 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!