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Guitar Chords - Songs in C

Updated on February 3, 2015

Easy Music Theory for guitar

Most songs for guitar follow a fairly predictable course when you look at the guitar chords and scales that are used - and once you understand a little bit of theory it makes learning guitar so much easier. All the chords and scales are shown in the diagram below. m = minor, all the numbers refer to the interval, or distance from the starting note.

Let's start with the key of C.

  • The notes in the major scale are: C D E F G A B C (shown in the first chord diagram)
  • Every note can have a chord built on it, leading to
  • C Dm Em F G Am Bm7b5 C (all the chords in the key of C)
  • Now let's number both the scale notes and the chords, 1 to 8
  • Note and chord 1 and 8 are the same, an octave apart, so there are only 7 notes and 7 chords to learn.
  • Most songs are constructed with chords 1, 4 and 5 (I, IV and V)
  • In this key that means C, F, and G
  • G7 is often used instead of G, because it has a stronger pull back to the 1 chord
  • F maj7 can be used instead of F, as it is easier to play and usually sounds nicer.
  • The relative minor chord is chord 6 (vi) - which is Am
  • To improvise over chords in C, just use Am pentatonic, which is called the relative minor scale. You could also use the C major scale, which is very similar but with two more notes.
  • Am pentatonic scale is shown in the diagram. Think of it as a boxed pattern, between frets 5 and 8. To play this scale in other keys you can just move it up and down the neck like a template. The notes can be played in any order and will fit all the chords in the key of C (aka The Harmonised scale in C)

2 - Chord songs

Yes, there are songs, and successful songs at that, that only use two chords, the 1 chord and the 5 chord. Just using C and G7 (I and V) you can play

How Much is That Doggie in the Window (3/4 time) - more fun with barking noises

Just Want to Dance the Night Away (4/4 time) - more fun with a horn section

  • You could solo over these chords using Am pentatonic.

3 - Chord songs

There are dozens of these - but good examples would be La Bamba, and Twist and Shout by The Beatles, which is basically the same song.

  • Now we are using C, F, and G7, or I IV and V in the key of C

4 - Chord Songs

Just by adding the relative minor chord, chord vi or Am, we can play many more songs.

  • Stand By Me is a good example
  • Chords are C Am F G7 C
  • As we are still in the same key, the Am pentatonic scale is still working fine.
  • Country songs, such as many Hank Williams songs, and 50s and 60s songs in general will often use C, F, and G7 and add a D7 to the mix - strictly speaking, this departs from the key of C, but it's only a temporary change of key which adds some interest and variety.
  • An example of this is Hey Good Lookin', Your Cheatin' Heart, You Win Again. All great Hank Williams songs.

6 - chord songs

Now if we add chords ii and iii (Dm and Em) we can play songs such as Like A Rolling Stone, a Dylan song that has been voted the best ever rock song.

  • The chord sequence for this song starts with chords 1 - 5 in the key of C
  • C Dm Em F G7 (repeat)
  • We are still in the key of C, and we can use the Am pentatonic scale for solos and the melody line
  • The chorus of this song is based around the I IV V sequence again, C,F and G7.

Key of C: scales and chords

Other keys

There are major and minor keys, but the good news is - all the distances or intervals and all the scale patterns are exactly the same as the ones we've described here, they just start at a different fret. Here are a few examples:

Key of D, just move all the chords up 2 frets (because C to D is a two fret distance) Relative minor chord is now Bm. 1, 4, and 5 chords are now D, G, A7. Major scale and minor pentatonic scale exactly the same pattern, moved up 2 frets.

  • Relative minor of C is Am. if you look at the notes in each chord, they are almost the same, and only the bass note has changed between C and Am7.
  • For the key of Am, all the chords are the same as C, just starting at a different point in the sequence.
  • So the chords are: Am, Bm7b5, C, Dm, Em, F, G7, Am
  • In practice, the Em chord is usually changed to E7 - same reason, it is now a dominant 7th or 5 chord leading back to the home chord, Am.
  • The Am pentatonic scale is the best scale to fit an Am chord, and also all the chords in the key of Am.

Songs in A minor

  • Rhiannon is very easy (Fleetwood Mac) and just uses Am, Fmaj7 and C
  • Angie (Rolling Stones) is also in this key
  • Remember, the chords are basically the same as the chords in the key of C, except E7 is usually used in place of Em
  • Best scale is still Am pentatonic, but you can also put the missing 2 notes of the C scale back in the mix
  • The 2 notes are B and F - both notes which can clash a little with some of the chords
  • When an E7 appears, safest thing is to play a G sharp note to make a better fit with the chord, but only on the E7 chord.

Other keys, relative minor chords

Tonic (I)
Relative minor (vi)
F ♯ m
C ♯ m
Even though the key is different, the distance between the chords is the same. So it's a regular pattern that can be used in any key.

Chord changes

In the real world of playing songs, you will find this chord progression is very, very common. So a good practice tip is to learn the I to vi chords in all the common keys shown above, and it will really pay dividends when you are learning songs. Also, learn the ii V I chord sequence in these keys for the same reason. In the key of C this would be Dm G7 C.

Need help with music theory?

You can use the comments box to ask questions about music theory, as applied to guitar or piano.

It's worth noting that all this theory will work on piano or keyboard equally well.


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    • Jon Green profile image

      Jon Green 5 years ago from Frome, Somerset, UK

      Hi Debbie - good luck, sounds like you have a real advantage there.

    • debbiepinkston profile image

      Debbie Pinkston 5 years ago from Pereira, Colombia and NW Arkansas

      Jon, thank you! I just started learning to play the guitar (again..I played in high school) and my son is teaching me. He teaches guitar full time and is a great teacher. I think your Hubs will be a great compliment to my lessons with my son. Can't wait to start learning from you!

    • Jon Green profile image

      Jon Green 5 years ago from Frome, Somerset, UK

      Thanks Andrew. There will be a short written test later!

    • profile image

      Andrew 5 years ago

      There's just a danger here that I might understand this!

      Thanks Jon