# Rhythm engines overview
The **rhythms** are made available by **rhythm engines**.
Thanks to its open-source and pluggable architecture, JJazzLab can host many different rhythm engines. If you’re a developer you can build your own quite easily!
A rhythm engine has one or more **rhythm providers** which propose a list of supported rhythms and the supported **rhythm parameters**. You can see the list of all available **rhythm providers** in the **rhythm selection dialog**.
JJazzLab currently includes one rhythm engine, [YamJJazz](/user-guide/rhythm-engines/yamjjazz-rhythm-engine.md), which is based on Yamaha styles. Its **rhythm parameters** are Variation, Intensity and Fill (other parameters such as Mute or Tempo Factor are generic and work with any rhythm).
## Future rhythm engines
Here some examples of what could be developed using the JJazzLab-X infrastructure.
* An AI-based jazz oriented engine with only one versatile rhythm which adapts to different contexts, like a real band (slow or fast tempo, walking bass or not, etc.).
* A drum engine similar to the Logic Pro X virtual drummer
* An engine able to adapt the backing track to a given melody
* A “meta-engine” which lets you combine individual tracks from various rhythms (e.g. combine a hip-hop bass line with latin drums)
* An engine able to read style files from Band-In-A-Box or other arranger keyboards such as Korg or Ketron
* etc.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://jjazzlab.gitbook.io/user-guide/rhythm-engines/overview.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.