Harmonize: Ear Trainer & Pitch app analytics for September 11

🎵 Ear training that sticks — 15 games for intervals, chords, rhythm and playing melodies by ear. Free to start, no account needed. Most ear trainers ask you to pick the answer from a list. Harmonize asks you to *make* the sound: slide to harmonize against a reference tone, play a melody back on a keyboard, tap a rhythm. Producing the interval yourself is what makes it stay. Train with the cute mascots Ebifurya and Kakifurya. ▼ 15 games • Double Stop — harmonize two notes: unison, octave, perfect 5th/4th, major/minor 3rds and 6ths (8 categories) • Chords — real 3–4 voice chords, unlocked as you collect stars • Moon — the reference tone fades away; harmonize from memory alone • Low Register — bass instruments, where intervals are hardest to hear • Trill — train the speed and evenness of your trill • Ear Copy — listen to a melody and play it back on the keyboard (9 categories, 129 levels) • Sight Reading — read notes on the staff and play them on the keyboard (9 categories, 180 levels, 1,020 exercises) • Rhythm — tap the offbeats with the metronome: 6 meters from march to sixteenths × 8 sound packs • Polyrhythm — two hands, two pulses at once • Mimic Drum — call and response: hear a rhythm, drum it back • Takoyaki — a memory game where the pairs match by pitch • Scales — major, minor and the church modes • Arpeggio — chord arpeggios in just intonation • Goldfish Scoop — tell the goldfish apart by their tone • Silent — no sound at all: count the seconds with your internal clock ▼ Tools and extras • Weekly Challenge — 5 questions, one shot each, with an online leaderboard • Metronome and Tuner built in • Tutorial for complete beginners ▼ Built for real practice • 17 instrument tones — 13 for the main games (piano, organ, violin, trumpet, shakuhachi, flute…) plus 4 bass instruments for Low Register • Adjustable A reference (440–446 Hz) • Note names in English, German, Japanese or Italian • Per-voice volume and vibrato • Rhythm timing calibration — accurate judgement even with Bluetooth earphones • Cent-level feedback: see exactly how far off you were ▼ 8 languages English, 日本語, Français, Deutsch, Español, Italiano, 简体中文, 한국어 — switch anytime in Settings. Free to play, with an optional one-time purchase to remove ads or unlock PRO games. No subscription. For choirs, wind ensembles, orchestras, bands, singer-songwriters, and anyone learning an instrument — train your ear a few minutes a day.