# Tutorial 7: Clock Basics

To stop all player objects, you can press `Ctrl+.`  (Hold Ctrl and hit the period)
Which is a shortcut for the command:

``` python
Clock.clear()
```

Change the tempo (this takes effect at the next bar) Default is 120.

``` python
Clock.bpm = 144
```

To see what is scheduled to be played.

``` python
print(Clock)
```

To see what the latency is

``` python
print(Clock.latency)
```

Sometimes you want to know when the start of the next X beat cycle. To
do this we use the 'mod' method. For example if we want to see when
the start of the next 32 beat cycle is we can do

``` python
print(Clock.mod(32))
```