# Key signatures and theory

```Reading key signatures

On your exam, you will be asked to identify the key signature of the piece in
front of you.

The key signature at the beginning of the piece lets us know what key the
piece is in, and what sharps or flats to play.

Remember: every key signature has a major and a minor scale that uses it.


Find the major key signature by:

Sharps: look one note above the last sharp

Flats: look at the second last flat in the signature

Find the minor key (relative minor) by going down two steps. Eg. G majorE minor.

Check it is not in a minor key by looking at the first and last note of the
piece.

Figure out the two keys that this key signature shows:

__ major, and __ minor.

How do we tell which key its in?
Theory – book 1

Notes are written on the musical staff (or stave) and their position on the
staff lets us know what letter it is.

In music, every note is allocated a letter from A-G which then repeats.

Practice writing the rhythms you learned in the first chapter on the staff
when you work through chapter 2.
Theory – book 2

Tetrachord is a scary word – but all it means is that the last four notes (the
last half) of a scale is the beginning of another scale.

If we look at the last four notes of a C scale, those four notes are actually the
beginning of the G scale.

To make things even more intertwined, C-G is the first step in the circle of
fifths.

PS. Whenever the book asks you to write a minor scale, write a major
scale instead. We will go through minor scales later on in the term.
Theory – book 3

Every note on the scale has a different name:

1 – tonic

2 – supertonic

3 – mediant

4 – subdominant

5 – dominant

6 – submediant

7- subtonic

Your theory book will ask you to write scales, identifying the different note types.

PS. Whenever the book asks you to write a minor scale, write a major scale
instead. We will go through minor scales later on in the term.
```