D-DU-UDU
The Island Strum (D-DU-UDU)
`D` is a downstroke, `U` is an upstroke, and the hyphen is a silent eighth note — a moment where your hand keeps moving but does not touch the strings. So **D-DU-UDU** is six contacts spread across eight eighth notes, counted **1, 2-and, and-3-and**.
Strum: D-DU-UDU · Metre: 4/4 · Tempo: 70-110 bpm · Level: beginner
What the letters mean
D is a downstroke, U is an upstroke, and the hyphen is a silent eighth note — a moment where your hand keeps moving but does not touch the strings. So D-DU-UDU is six contacts spread across eight eighth notes, counted 1, 2-and, and-3-and.
The pattern is sometimes printed as D-DU-UDU and sometimes as D-DU-UDU-DU. They are the same thing read at different bar lengths: the first notation assumes one bar of 4/4 per repetition, and the extra DU at the end simply fills the fourth beat.
Why it is the first pattern to learn
Your hand never stops moving. Every strum pattern that sounds difficult is built from this one by removing strokes, and you can only remove a stroke cleanly if the hand keeps swinging through the gap. Practise it with the strings muted by your left hand — a flat palm across all four strings — so you hear only the rhythm.
- Metronome at 60. Play four bars muted, four bars open.
- Say "down, down-up, up-down-up" out loud for the first week.
- Once it is automatic, drop the metronome and count the bar in your head instead.
The two mistakes everyone makes
Accelerating on the upstrokes. The upstroke is lighter than the downstroke, not faster. If your tempo drifts, you are pushing the up.
Changing chords on beat four. The change belongs on beat one of the next bar. If you move early you will clip the previous chord, and the pattern will suddenly sound rushed even though the tempo has not changed.
Where it fits
This pattern carries most 4/4 sing-along material at 70-110 bpm. Above 110 it starts to feel heavy; that is when you move to the campfire downstrum with accents, or a Calypso swing.
Sheets that use this
- Twinkle, Twinkle, Little Star — C · D-DU-UDU
- Down in the Valley — G · D-DU-UDU
- Red River Valley — A · D-DU-UDU
- Jasmine Flower (Mo Li Hua) — F · D-DU-UDU
Questions that come up
Do I have to hit all four strings every time?
No, and you should not. Aim at the top three strings on downstrokes and the bottom two on upstrokes. A pattern that catches all four strings every single time sounds flat and loud; the variation is what makes it sound played rather than programmed.
My thumb keeps catching on the strings. What is wrong?
You are strumming with the thumb pad instead of the nail. Turn your hand so the nail of the index finger leads on downstrokes and the thumb nail leads on upstrokes. Grow a little nail on the thumb if you plan to play without a pick.