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Slack Key

F · C · Bb · F

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F
I
C
V
Bb
IV
F
I
Key
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Slack Key in F major

Slack Key is I · V · IV · I. In F major that is F, C, Bb. Inspired by slack-key guitar traditions. Simple and sweet. Loop those chords in order. The same pattern works in any major key.

Songs that use this

  • Lovely Hula Hands · R. Alex Anderson
  • My Little Grass Shack

Why it works

In F major this loop is F, C, Bb (I · V · IV · I). I is the home chord. V pulls away from home and wants to resolve. IV moves the song forward without leaving the key. Play the chords in order and the pattern is easy to hear on ukulele.

Chords in F major

Jump to each shape used in this loop.

FCBb

Try in other keys

Same Roman numerals; chords transpose with the key.

C major → C · G · F · CD major → D · A · G · DE major → E · B · A · EF major → F · C · Bb · FG major → G · D · C · GA major → A · E · D · AB major → B · F# · E · B

Related progressions

Hawaiian VampHulaIsland BreezeIsland StrumIsland Lullaby

Frequently asked questions

What is the Slack Key ukulele chord progression?

Slack Key is the I–V–IV–I chord loop. In F major that is F, C, and Bb. Inspired by slack-key guitar traditions. Simple and sweet.

What do the roman numerals mean in Slack Key?

Roman numerals mark each chord's role in the key, not fixed chord names. Uppercase is major, lowercase is minor. Slack Key uses I–V–IV–I. Change the key and the roles stay; the chord names move with it. In F major you play F, C, Bb.

How do you practice Slack Key on ukulele?

Loop F, C, and Bb. Change on the first beat of each bar and keep the strum steady. If one change is hard, practice that pair slowly, then play the full loop again.

What songs use the Slack Key progression?

Songs built on Slack Key include Lovely Hula Hands, and My Little Grass Shack.

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