Keys: Space Start/Stop · ←/→ ±1 · ↓/↑ ±5 · 0 Tap (disabled while typing numbers).
User Manual
Metronome Pro v18 is a precise metronome powered by Web Audio with look‑ahead scheduling, designed to work offline on phones, tablets, and desktops. It supports accents, subdivisions, swing, goals, presets, voice counting, MIDI, and more.
Quickstart
Start/Stop with Spacebar or the Start button. First click plays immediately.
Tap Tempo with the TAP TEMPO button or key 0. We blend median + EMA for robust detection.
Adjust BPM via the number, ± buttons, or the slider.
Time Signature: set Num (beats per bar) and Den (beat unit).
Subdiv adds 2/3/4 clicks per beat. Swing shifts the middle subdivision for 2 or 4.
Visuals
Visual flash overlays the screen on each beat (intensity slider has a single center line).
Beat circles outline colors mirror your Accent Pattern: red=Off, grey=Normal, green=Accent. The large ring turns green on beat 1.
Theme picker and Stage Mode live under Subdiv.
Accent & Subdivisions
Use Accent Pattern to cycle a beat: Off → Normal → Accent.
Subdivisions respect swing (best with 2 or 4).
Trainer & Goals
Trainer: Off, Ramp Up/Down, or Bounce. Configure Δ BPM, Every N bars, Min/Max. The trainer reacts in real-time to changes.
Goals: Bars (stop after N bars) or Minutes (stop after N minutes). When Minutes is selected, the Trainer’s “Every” control is disabled. The “Amount” label adapts to show Bars or Minutes accordingly.
Audio, Samples, MIDI
Built‑in click (sine/square/noise) or load your own sample. Downbeats auto‑pitch higher.
Voice Counting uses high-quality pre-recorded audio files for perfect timing.
Latency (ms) nudges scheduling if your device is early/late.
MIDI Out: enable, choose port, set note/velocity.
Presets & Sharing
Save unlimited presets locally, export/import JSON, or copy a shareable URL with state embedded.
Auto‑advance setlist loads the next preset when a Goal completes.