The Online Tuner
Instruments
GuitarBassUkuleleViolinViolaCelloDouble BassMandolinBanjoChromatic
Fig. 1 ·
The Online Tuner
♭ Flat
In tune
Sharp ♯
READY
A4 440 HZ
Strings · tap to hear
Start
A4 440

Press start and allow the microphone · nothing is recorded · or tap a string to tune by ear

Fig. 2 · Headstock · tap a note to hear it

While you play, an arrow on the peg shows which way to turn it. Machine heads vary, so if the note moves the wrong way, turn the other way.

Mandolin tuner online

Tune your mandolin online. The mandolin has four pairs of strings. Tune each string of a pair separately for a clean reading.

The mandolin is tuned like a violin, G D A E, but each note is a pair (course) of two strings tuned in unison.

Also called · GDAE

§ 1

String chart

String 1 is the thinnest. Frequencies are exact at A4 = 440 Hz; change the reference on the A4 knob.
StrNoteFrequency
1EE5 · Mi659.3 Hz
2AA4 · La440.0 Hz
3DD4 · Re293.7 Hz
4GG3 · Sol196.0 Hz
§ 2

Tuning your mandolin

Automatically with the microphone, or by ear: tap any note on the headstock to hear a real recorded reference.
  1. 1

    Allow microphone access.

  2. 2

    Mute one string of the pair with a finger and pluck the other, then swap.

  3. 3

    Tune G, D, A and E, then strum each pair to check they sound as one note.

§ 3

Mandolin tunings

2 tunings, all free. Notes listed from the lowest string.

Standard

Alternate

§ 4

Questions & troubleshooting

What are the notes of mandolin strings?
The mandolin is tuned G D A E, like a violin, with each note doubled in a pair of unison strings.
§ 5

The T-1 range

One tuner, set up for every instrument.
T-1 GUI
Guitar
E A D G B E
26 tunings
T-1 BAS
Bass
E A D G
9 tunings
T-1 UKU
Ukulele
G C E A
5 tunings
T-1 VIO
Violin
G D A E
2 tunings
T-1 VIO
Viola
C G D A
1 tuning
T-1 CEL
Cello
C G D A
1 tuning
T-1 DB
Double Bass
E A D G
2 tunings
T-1 MAN
Mandolin
G D A E
2 tunings
T-1 BAN
Banjo
G D G B D
4 tunings
T-1 CHR
Chromatic
Any note
Winds, brass, voice