working out chords in a key
DESCRIPTION
Working Out Chords in a KeyTRANSCRIPT
Working out chords in a key
LESSON DETAILS
TIME TO COMPLETE: 15-20 minutes
WHAT YOU NEED: Understanding of the Chord Formulas and the Major Scale lesson
SKILL LEVEL: Beginner-intermediate
Intro
If you have ever heard a musician say something like, “let’s jam in E” and wondered what on
earth that means, this lesson is for you. Learning what chords form part of a key and how to work
out those chords is a crucial skill if you want to be able to play with other musicians. This lesson
will walk you through finding the chords in any key.
Requirements
Make sure you read and understand the lesson on Chord Formulas and the Major Scale. To be able
to understand the theory in this lesson, you must be able to understand the basic theory of the
Major Scale. Music theory can be hard to understand for beginners so don’t stress if it doesn’t
make sense straight away. Bookmark the lesson and come back to it another time and it should
make more sense.
What’s in a key?
When somebody says a song is in a certain ‘key’ or ‘key signature’, they mean that the song is
formed around the notes in a certain scale. So if somebody says let’s jam in the key of C, what
they mean is let’s jam using the notes and chords that are part of the C Major Scale. If you don’t
know how to figure out the notes in a Major Scale, have a read through this lesson here. The notes
in the C Major Scale are C D E F G A B C. So a song based on the key of C will (generally) use
the notes C D E F G A B C.
What chords are in a key?
If you can figure out the notes in the Major Scale for the key you want to play, then there is a
simple formula you can use to find out what chords you can play in that key.
The formula is:
1 Major, 2 minor, 3 minor, 4 Major, 5 Major, 6 minor, 7 Diminished, 8 Major.
We have 8 chord types to match up with the 8 notes in the scale. Note: Remember that the
eighth and first note of the scale is the same. Think of it as completing a full circle.
So if we match up the notes in the C Major Scale to this chord formula, we get the chords:
C Major, D minor, E minor, F Major, G Major, A minor, B Diminished, C Major.
By following this simple formula, you are able to figure out the chords in any key if you know the
notes in the scale. For another example let’s figure out the chords in the key of G.
First, figure out the notes in the G Major Scale. For instructions on how to do this, check out this
lesson here. The notes in the G Major Scale are: G A B C D E F# G.
Next, we simply match up the notes in the scale to the chord formula above. So the chords used
in the key of G are:
G Major, A minor, B minor, C Major, D Major, E minor, F# Diminished, G Major.
Exercises
After you try this process out a few times it will be obvious how easy it really is. Here are a
couple exercises for you to try out. After you write your answers down you can check them with
the answer key at the end of this lesson.
Ex.1
What are the chords in the key of A?
Ex. 2
What are the chords in the key of E?
Ex. 3
What are the chords in the key of F?
Ex. 4
What are the chords in the key of D?
How can I use all this?
You may be thinking to yourself, “What can I do with all this theory?” There are countless times
when this skill will come in handy. Here are a few things you can do when you can figure out the
chords in a key:
Write a song
Jam with other musicians
Figure out chords and keys from other songs
Come up with good sounding chord progressions
Exercise answers
1) In the Key of A:
A Major, B minor, C# minor, D Major, E Major, F# minor, G# Diminished, A Major.
2) In the Key of E:
E Major, F# minor, G# minor, A Major, B Major, C# minor, D# Diminished, E Major.
3) In the Key of F:
F Major, G minor, A minor, Bb Major, C Major, D minor, E Diminished, F Major.
4) In the Key of D:
D Major, E minor, F# minor, G Major, A Major, B minor, C# Diminished, D Major.
Summary
Having the basic understanding of the above theory will have a huge impact on what you can do
on guitar. Take your time to understand all of this and if it doesn’t make sense now you can come
back another time and it will hopefully get easier. Don’t be put off by the words ‘music theory’ as
a basic understanding of it can have incredible benefits to your playing.