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Lessons

23: Keys


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Lesson 23: Keys

Keys are a basic music concept which you will need in order to understand both chord progressions and written music. To understand this lesson, you need to know the major scales, so review Lesson 12: Major 1-2-3 Games if you need to.

In most songs, one particular pitch feels like the "resting" or "home" pitch; this pitch is the song's key. For example, if the pitch C feels like the home pitch, then the song is "in the key of C".

Keys can be major or minor. If a song's home pitch is C and most of the song's notes come from the C major scale, then we say the song is in the key of C major. If the song's notes come from a C minor scale, then the song is in the key of C minor.

Now let's see how you can play the same song in different keys. First, here is "Mary Had A Little Lamb" in the key of C major:

Ma-ryhadalit-tle lamb
E
D
C
D
E
E
E
<- Notes (click)
3212333 <- Scale degrees

Click each note button above to hear the song.

Next, below, is "Mary Had A Little Lamb" again, this time in the key of E♭ major:

Ma-ryhadalit-tle lamb
G
F
E♭
F
G
G
G
<- Notes (click)
3212333 <- Scale degrees

Again, click each note button.

Notice that when you play the song "Mary Had A Little Lamb" in a different key, all the pitches change, but the scale degrees stay the same. You can play "Mary" in any key by playing scale degrees 3-2-1-2-3-3-3 from that key's major scale.

When you're sure you understand how keys work, you can start learning about chord progressions in Lesson 24: Roman Numeral Chords.

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Lessons

1: Introduction
2: Teaching Yourself
3: Pitch & Keyboard
4: Pitch Names
5: Letters Game
6: Sharps & Flats
7: Half-Steps
8: Whole-Steps
9: Steps Game
10: Scales
11: Major Scale 1-2-3
12: Major 1-2-3 Games
13: Major Scale 1-5
14: Major 1-5 Games
15: Chords: Major Triads
16: Major Triad Games
17: Minor Triads
18: Minor Triad Games
19: Major Scale 1-8
20: Major Scale Games
21: Scales Above 8
22: What Next
23: Keys
24: Roman Numeral Chords
25: Diatonic Triads
26: Using Diatonics
27: 7th Chords
28: 7ths Games
29: Treble Staff
30: Treble Staff Game
31: Melody: Chord Tones
32: Pitch & Frequency

More Lessons

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