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How To Write Ukulele Songs? Key Card!

Want to write your own massive hit? In this guide I’ll try to explain which chords to pick.

What to expect

  • What is a "key"
  • The theory behind keys (simplistic)
  • Different progressions explained
  • The key card (free to download)

the guide


I would like to point out that this guide on “How To Write Songs” is not absolute at all, you can always improvise, “invent” new ukulele chords and much more. Now that this is clear, lets start with what makes a song sound good in the first place. To make a song sound good, you want the chords you use, to match and sound good together. You can try a whole bunch of chords and see if they match, but there’s actually a quicker way to find matching chords, using “keys”.

Key Card

What is this “key” you are talking about!? Well, it’s basically a group of chords that sound “good” together. This is where the Key Card — which you can find at the bottom of this page — comes in handy. To find matching chords to create your song you can simply choose a key from the card and use any of the chord on that line (horizontally). This is followed by creating a strumming pattern and last but not least, the lyrics. You can however start with the lyrics and find a matching key for them of course. Note: use 6th / 7th / 9th versions of the chords to change the feel of your song.


If you take a close look at the Key Card you can see that the I-IV-V chord progressions are highlighted on the card. These are the most common chord progressions in all the music that exists. This I-IV-V progression is called “figured bass” (or thoroughbass) by classical composers — read this for more detail. The “I-IV-V progression”, which is widely used in blues, rock,… basically states that the first chord you should play is the I chord, followed by the IV chord and finally the V chord. This combination of chords is bound to sound good together. For example “Liquor Store Blues” by Bruno Mars is written in the E key since it has the chords C#m-G#m-A-B.

At the top you can find the “scale degrees”. Western scales have seven different degrees and are designated by the roman numbers I -> VII. A few examples:

• Key C -> Scale: C D E F G A B C
• Key A# -> Scale: A# C D D# F G A A#
• Key A -> Scale: A B C# D F F# G# A

Examples of the I-IV-V progression:

• Key C -> C-F-G
• Key A# -> A#-D#-F
• Key A -> A-D-E

If you take a look at the major key you can see it is divided in three “groups”. The triads for I-IV-V are all major chords. The triads for II-III-VI are all minor chords and the triad for VII is a diminished chord. So, if you know the scales well, you can always find the IV and the V. Simply play the major chord with that note as the root.

Key G -> Major scale: G A B C D E F# G -> I-IV-V = G-C-D


Hopefully this guide has helped you a little bit in understanding how chords are picked to create songs. Feel free to print the “Key Card”, simply click it and then “Save As”.


Hopefully you've enjoyed reading this guide. Any remarks, questions or suggestion? Use the contact form to let me know what they are!

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