How to Play Chord Extensions on the Major 7, Minor 7 and Dominant 7 Chord

This lesson is a introduction to extensions where you will learn how to start playing chord extensions on the Major 7, Minor 7 and Dominant 7 Chords in root position on the piano.

Have you ever wondered what the numbers are like 9, 11, 13, #9 next to the 4-note chords like Cmaj7(9), Gb7(b9)? Maybe you already have an idea of what the extensions are but you have trouble changing keys with the chords? This lesson will answer your questions about what extensions on a chord are and how you can play them.

Download your free pdf cheat sheet and mp3 files under the video which will show you the common notes (extensions) that suit the Major 7, Minor 7 and Dominant 7 Chords in all 12 keys.

Please Note: This lesson works for all instruments and voice. While a piano player or guitarist can play all the notes together, if you are a vocalist or if you play saxophone, flute, trumpet or other instrument you can play the notes as a broken chord or arpeggio.

So what exactly are extensions on chords? I like to look at extensions like the extensions of a house. When you add a room to your house you’re adding something new to make the house bigger and better and that’s exactly what happens with chord extensions, you’re adding on a note or notes to make the 4-note chord ‘sound’ bigger and better, thicker in texture. You can add one note or a few notes depending how thick you want the chord.

To explain all this a 4-note chord – either the major 7, minor 7 and dominant 7 will be played with the left hand and the extensions will be played with the right hand on the piano.

All this information is on your free pdf/cheat sheet in all 12 keys! How cool is that!

In future lessons I’ll explain even more about extensions such as altered, augmented and minor 7 with the (b5) chord.

If you have any questions please get in touch and leave me a comment below. You can also email me directly at: It’s great to hear from you guys so please don’t be shy.

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I hope this has helped you out.

Take it easy,


Here’s the first part of this lesson’s pdf/cheat sheet: