Online Metronome

Most browser metronomes use setInterval for timing, which can drift by 10-50ms due to JavaScript's single-threaded event loop. This metronome uses the Web Audio API's AudioContext scheduler (the Chris Wilson lookahead pattern), which schedules audio events ahead of time against the hardware audio clock. This gives sample-accurate timing that stays perfectly in tempo even under heavy browser load.

The speed trainer automatically increases the tempo as you practice. Set a start BPM, end BPM, and the increment amount per number of bars. For example, start at 80 BPM and increase by 5 BPM every 4 bars until reaching 120 BPM. This is the standard method guitar teachers and drum instructors use to build speed gradually without sacrificing accuracy.

Mute training alternates between audible clicks and silence for a set number of bars. For example, play 2 bars, then silence for 2 bars, then play again. During the silent bars, you must maintain the tempo internally. When the click resumes, you can hear if you sped up or slowed down. This builds the internal metronome that professional musicians rely on.

Time signatures include 2/4, 3/4, 4/4, 5/4, 6/8, 7/8, and custom. Subdivisions include straight 8th notes, 16th notes, and triplets. You can combine these with the accent pattern editor — click each beat to cycle through strong, normal, weak, and mute accents. This covers everything from basic practice to complex odd-meter progressive rock patterns.