Dynamic Soundtrack Generator for a Game Studio

Problem/Feature Description

An indie game studio is building a tool to generate custom soundtracks for different game levels. Each level has a specific mood that shifts across sections (e.g., a stealth level starts tense and quiet, builds suspense, then erupts into action). They need precise control over the musical structure — not just a single prompt, but the ability to shape individual sections of the track.

They want a Node.js script called generate_soundtrack.js that:

• Generates a 60-second soundtrack for a stealth game level
• Uses the ElevenLabs API with fine-grained structural control over sections (not just a simple text prompt)
• Allows inspecting and potentially modifying the musical structure before final generation
• Saves the resulting audio as an MP3 file

The studio uses npm for package management.

Output Specification

• generate_soundtrack.js — The Node.js script
• package.json — Node.js project file with dependencies