---
title: Notes
description: Strudel Tutorial - Notes
layout: ../../layouts/MainLayout.astro
---
import { MiniRepl } from '../../docs/MiniRepl';
import { JsDoc } from '../../docs/JsDoc';
# Samples
# Default Sample Map
As we have seen, `s` can play back audio samples:
These sounds come from Strudel's in-built default "sample map".
To know which sounds are available, open the [default sample map](https://strudel.tidalcycles.org/EmuSP12.json).
# Custom Sample Maps
You can load your own sample map using the `samples` function.
In this example we create a map using sounds from the default sample map:
When you load your own samples, you can choose the names that you will then refer to in your pattern string inside the `s` function.
Compare with this example which uses the same samples, but with different names.
Here we have changed the "map" to include longer sample names.
# Loading Custom Samples
The `samples` function has two arguments:
- A [JavaScript object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) that maps sound names to audio file paths.
- A base URL that comes before each path describing where the sample folder can be found online.
- Make sure your base URL ends with a slash, while your sample paths do **not** begin with one!
To see how this looks in practice, compare the [DirtSamples GitHub repo](https://github.com/tidalcycles/Dirt-Samples) with the previous sample map example.
Because GitHub is a popular place for uploading open source samples, it has its own shortcut:
The format is `github:user/repo/branch/`.
Let's see another example, this time based on the following GitHub repo: https://github.com/jarmitage/jarmitage.github.io.
We can see there are some guitar samples inside the `/samples` folder, so let's try to load them:
# Loading Multiple Samples per Sound
It is also possible, to declare multiple files for one sound, using the array notation:
,~ ,[hh:0 hh:1]*2")`}
/>
The `:0` `:1` etc. are the indices of the array.
The sample number can also be set using `n`:
")`}
/>
In that case, we might load our guitar sample map a different way:
And as above, we can choose the sample number using `n` for even more flexibility:
").s("guitar")`}
/>
# Pitched Sounds
For pitched sounds, you can use `note`, just like with synths:
@2").s('gtr').gain(.5)`}
/>
Here, the guitar samples will overlap, because they always play till the end.
If we want them to behave more like a synth, we can add `clip(1)`:
@2").s('gtr').clip(1)
.gain(.5)`}
/>
# Base Pitch
If we have 2 samples with different base pitches, we can make them in tune by specifying the pitch like this:
@2").s("gtr,moog").clip(1)
.gain(.5)`}
/>
If a sample has no pitch set, `c3` is the default.
We can also declare different samples for different regions of the keyboard:
!2, g4 f4]>")
.s('moog').clip(1)
.gain(.5)`}
/>
The sampler will always pick the closest matching sample for the current note!
# Sampler Effects
Below are four different examples of sampler "effects" which are functions that can be used to change the behaviour of sample playback.
Note that most of what you've learned already about Tidal mini-notation can be used with these functions too.
Almost everything in Tidal can be patterned using strings!
### `begin`
### `end`
### `cut`
### `loopAt`
### `chop`
### `speed`