Metronome Polyrhythm & Tuner

When practicing a piece where your left hand plays in 3 and your right hand plays in 4, a single standard metronome cannot show both rhythmic streams at the same time. Dual Metronome is a dedicated rhythm practice partner designed to run two independent metronomes—each with its own BPM, time signature, and subdivision—simultaneously on one screen.

Whether you play piano, drums, guitar, bass, strings, or wind instruments, Dual Metronome brings together polyrhythm playback, an automatic speed trainer, a real-time chromatic tuner, and custom routine presets in a clean, distraction-free interface.

■ Why Dual Metronome?
Standard metronomes keep a single steady pulse, but mastering 3-against-2 or 4-against-3 polyrhythms in Chopin or Debussy, complex jazz and rock drum grooves, or shifting odd meters requires hearing how two independent tempos and meters interlock. Dual Metronome plays both rhythm channels side by side with left/right stereo separation so your ears and hands lock into the exact intersection of every beat.

■ Side-by-Side Polyrhythm & Polytempo Engine
Assign different time signatures (2/4, 3/4, 4/4, 6/8, 7/8, 9/8, 12/8) and independent BPMs to Track A and Track B. Customize downbeat accents and rhythmic subdivisions (quarter notes, eighth notes, triplets, sixteenth notes, quintuplets, sextuplets) per channel. High-visibility visual beat indicators flash in sync with each pulse, allowing you to mute the audio and train your internal clock visually.

■ Automatic Speed Trainer, Bar Counter & Random Mute
Build speed and precision for scales, arpeggios, Hanon exercises, and drum rudiments without taking your hands off your instrument. Set a starting BPM, target BPM, step increment (such as +2 BPM), and bar interval (such as every 4 bars) to accelerate automatically. Combine the speed trainer with the bar counter (auto-stop or loop after N bars) and the random mute drill to test your internal timing stability.

■ Built-in 0.1Hz Real-Time Chromatic Tuner & 440Hz Reference Pitch
Tune your instrument without switching apps. The built-in microphone chromatic tuner detects live note pitch and frequency down to 0.1Hz with a responsive cent needle gauge, alongside an adjustable A4 = 440Hz (400–480Hz) reference pitch generator for wind, string, and acoustic players.

■ Stage-Ready Reliability
· One-Tap Routine Presets: Save your favorite polytempo combinations and recall them instantly before a song.
· Glare-Free Dark Theme: High-contrast dark UI built for dimly lit rehearsal studios and concert stages.
· Uninterrupted Practice: Keep the screen awake, run beats in the background while reading digital sheet music, and work 100% offline with no account required.