Synthesizer V Studio MCP Server

MCP server for Synthesizer V AI Vocal Studio, which allows LLMs to create/edit vocal tracks e.g. adding lyrics to the melody.

Installation

Prerequisites

• Node.js (tested with v22)
• Synthesizer V Studio (tested with V2)

0. Clone this repo

git clone https://github.com/ocadaruma/mcp-svstudio.git

1. Configure Synthesizer V Studio

• Copy below two files to Synthesizer V Studio scripts folder (On MacOS with V2 Studio, it’s ~/Library/Application Support/Dreamtonics/Synthesizer V Studio 2/scripts by default)
  • sv-scripts/StartMCPServerRequestHandler.lua
  • sv-scripts/StopMCPServerRequestHandler.lua
• Run StartServerRequestHandler on Synthesizer V Studio
  • From Scripts menu > MCP > StartServerRequestHandler
  • ⚠️ Please do this before configuring MCP client. Otherwise, you will get connection issue.

2. Configure MCP client

⚠️ Please run only one MCP server at a time.

Add below config to the MCP server config of your client. (e.g. On MacOS Claude Desktop, it’s ~/Library/Application Support/Claude/claude_desktop_config.json by default)

{
  "mcpServers": {
    "SynthesizerVStudioMCP": {
      "command": "/path/to/node",
      "args": [
        "/path/to/mcp-svstudio/dist/index.js"
      ]
    }
  }
}

Example commands

• Sing something (then “Add harmony track”)
  • Demo
• Create an EDM vocal track
• Add lyrics to the existing track

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch