Drop D lowers only the sixth string a whole step, from E2 (82.41 Hz) to D2 (73.42 Hz), giving D A D G B E. The low D now matches the open fourth string an octave down, so power chords play with one finger across the bottom three strings.
How to use
- Metronome: drag the ring, use − and +, or click the number to type a tempo. Press Start.
- Choose the time signature, subdivision and sound. Tap a beat dot to switch it between accent, normal and silent.
- Speed up raises the tempo by a set amount every few bars until it reaches your target.
- Tuner: pick an instrument, press Start tuner and allow the microphone. Play one string; tune until the needle is centered and turns green.
- BPM: drop a song to detect its tempo and play it with a click to check, or tap along on the pad.
- Clicks are scheduled ahead on the audio clock, so timing stays steady even when the tab is in the background.
- The tuner uses the YIN pitch method and reads notes from about 30 Hz to 2 kHz. A quiet room helps with low bass strings.
- BPM detection looks for repeating onsets in up to 150 seconds of the track. If the result is half or double the tempo you hear, use the second value shown.
- Microphone audio and songs are processed on your device and never uploaded.
How the tuner hears pitch
The tuner analyses the microphone signal with the YIN pitch-detection method, which finds the repeating period of the waveform rather than just the loudest frequency. That makes it reliable on guitar and bass, whose overtones can be louder than the fundamental. It reads from about 30 Hz to 2 kHz.
Audio is processed on your device and never uploaded.
Cents and the A4 reference
A semitone is divided into 100 cents. The needle shows how far you are from the nearest note in cents and turns green within ±5 cents, closer than most listeners can hear. Standard pitch is A4 = 440 Hz; some orchestras use 442 or 443 Hz and historical ensembles 430 Hz, and every note shifts with the reference.
Getting a clean reading
Tune in a quiet room, play one string at a time and let it ring, and tune up to the note from below so the string settles. On a phone, hold the instrument close to the microphone; low bass strings need a firm pluck.
Frequently asked questions
How do I tune my guitar with the microphone?
Choose Guitar, press Start tuner and allow the microphone. Play one string; tighten it if the needle is left (flat) and loosen it if it is right (sharp) until it turns green.
What does ‘cents’ mean on a tuner?
A cent is one hundredth of a semitone. ±5 cents is generally considered in tune for practice; the needle turns green inside that range.
Why does the tuner jump between notes?
Background noise, other strings ringing or a very soft note can confuse pitch detection. Mute the other strings and pluck the one you are tuning firmly.
Is my microphone audio recorded?
No. The sound is analysed live in your browser and is not stored or sent anywhere.
Can I tune to 432 Hz?
Yes. Set the A4 reference anywhere from 430 to 450 Hz, and all target notes follow.