# Tutorial 8: Scales

By default, Player Objects use the `C Major` scale.
These can be changed by using the keyword arguments `scale` and `root`.
Scales can be defined as an array of semitones, such that the Major scale is `[0,2,4,5,7,9,11]`
or one of the predefined scales from the Scale module, e.g. Scale.minor.
Root refers to the tonic of the scale; `0` being `C`, `1` is `C#`, `2` is `D` and so on.

The default scale can be changed such that any Player not using a specific scale will be updated.
This is done using the syntax below (each line is technically equivalent):

``` python
Scale.default.set("major")
Scale.default.set(Scale.major)
Scale.default.set([0,2,4,5,7,9,11])
```

Or the same thing, but `minor`:

``` python
Scale.default.set("minor")
Scale.default.set(Scale.minor)
Scale.default.set([0,2,3,5,7,10])
```

To save some time you can also do

``` python
Scale.default = "minor"
```

This is the same for the root:

``` python
Root.default.set(1)
Root.default.set("C#")
```

Or:

``` python
Root.default.set(2)
Root.default.set("D")
```

To see a list of all scales, use

``` python
print(Scale.names())
```

You can change the scale used by a player using the `scale` keyword

``` python
p1 >> pads([0,1,2], scale=Scale.minor)
```

Similarly, you can change the root note players using the root keyword
and the `Root.default` object

``` python
p1 >> pads([0,1,2], scale=Scale.minor, root=2)
```