Lesson
Tuning your mandolin (without the frustration)
Nothing makes a mandolin sound “wrong” faster than being out of tune — and nothing is easier to fix. Five minutes here will save you weeks of wondering why your practice doesn’t sound like the recordings.
What the strings are
Looking down at your mandolin, the strings run G – D – A – E from the thickest (closest to the ceiling when you’re holding it) to the thinnest. Each “string” is actually a pair of identical strings tuned to the same note — the pairs are called courses, and they’re what give the mandolin its shimmering sound.
Handy fact: it’s the same tuning as a violin, and the reverse of the first four strings of a guitar.
What you need
A clip-on tuner (about the price of a set of strings). It clamps on the headstock, feels the vibration, and shows you the note. Phone tuner apps work in a quiet room, but a clip-on works at a jam, on a porch, anywhere. Chromatic mode is what you want — it displays whatever note it hears.
How to tune, step by step
- Clip the tuner on the headstock and pluck one string at a time — yes, within each pair. Mute the neighbouring strings lightly with a spare finger so the tuner hears only one.
- Start with the G pair and work toward the E pair.
- Read the display: it shows the nearest note plus how sharp (too high) or flat (too low) you are.
- Turn that string’s tuning peg a small amount — an eighth of a turn is a lot. Watch which way the needle moves, and sneak up on the centre.
- Always finish by tuning UP to the note. If you overshoot, drop below the target and come back up. Tuning up leaves the string’s tension “set” so it holds; tuning down leaves slack that slips.
- When both strings of a pair read dead-on, pluck them together. They should sound like one note. If you hear a slow wobble (“wah-wah- wah”), one of the pair is slightly off — retune it.
Why it keeps going out of tune
- New strings stretch. For the first few days after a string change, retune constantly. It settles.
- Temperature and humidity. A mandolin that rode in a cold car will drift for ten minutes while it warms up.
- Aggressive playing knocks pairs apart slightly. Normal — that’s why players retune between tunes.
The habit that matters: tune every single time you pick the instrument up. It trains your ear to know what “right” sounds like, which is quietly the first ear-training lesson you’ll ever do.
Check yourself
You’re done when: every pair reads centred on the tuner, each pair played together sounds like a single clean note, and a G chord (next lesson) sounds sweet, not sour.