download_and_play
Search for and play a song. If the song is already in the library it will play the existing version, otherwise it will download it first.
LABSCO SUMMARY
Downloads and plays on the host, so it is a desktop tool rather than a service.
Everything happens where the server runs — the file lands in your download path and the sound comes out of your speakers — which is what makes it work with a local model in LM Studio and what makes it wrong for anything remote. The author is explicit that this is for content you have the right to download, and that the YouTube terms and local copyright law are yours to comply with.
What it is
A Python server that lets a local model search YouTube for music, download and convert it to MP3, and start or stop playback. Searches and downloads are asynchronous, so a long download does not block the conversation.
What you get
- Search YouTube Music by artist, song title, album or any query
- Download and convert a result to a high-quality MP3 in the folder you configured
- Start and stop playback from the model
- Debug-level logging to a file and to stderr when something does not play
Requirements
Ffmpeg on the machine — winget install ffmpeg on Windows, sudo apt install ffmpeg on Debian or Ubuntu. It is launched through uv run with fastmcp, yt-dlp, tinydb and pygame supplied as --with dependencies, pointing at server.py, and DOWNLOAD_PATH set to where files should land. A model actually trained for tool use is needed; the author names Qwen 3 and Gemma 3. The Python package is llm-jukebox, version 0.1.0.
Setup effort
Build from source — git clone https://github.com/jabberjabberjabber/llm-jukebox
USE CASES
01
Playing something without leaving what you are doing
Name the track and let the model find it and start it.
02
Building a local library
Download tracks as MP3 into a folder you nominate rather than streaming them.
03
Working out why nothing played
Turn on debug logging and read the log file rather than retrying blindly.
3 tools
Listed in project code.
stop_playback
Stop any currently playing song.
list_library
List all songs in the music library.
BEFORE YOU INSTALL
What to know first
Tools you get
3 tools registered in the project's code.
Where it runs
The documented client runs the server on your machine.
INSTALLATION
Connect your client
Server setup
TERMINAL
git clone https://github.com/jabberjabberjabber/llm-jukeboxMake sure you have ffmpeg. In windows open a terminal and type winget install ffmpeg, in Ubuntu or Debian do sudo apt install ffmpeg
MCP Clients
LM Studio
LM STUDIO · JSON
{
"mcpServers": {
"llm-jukebox": {
"command": "uv",
"args": [
"run",
"--with",
"fastmcp",
"--with",
"yt-dlp",
"--with",
"tinydb",
"--with",
"pygame",
"fastmcp",
"run",
"c:/users/<YOUR_USERNAME>/llm-jukebox/server.py"
],
"env": {
"DOWNLOAD_PATH": "c:/users/<YOUR_USERNAME>/downloads"
}
}
}
}
