🎵 AI Background Music Composer

End-to-end AI system that generates custom background music tailored to video content

ABC is an end-to-end multi-modal AI system that analyzes video content and generates tailored background music. Upload a video, and our system will understand the scenes, objects, and emotions to create the perfect musical accompaniment.

đź”— Project Links

View Source Code Watch Demo

Motivation

Short-form platforms like TikTok, YouTube Shorts, and Instagram Reels have made background music a core part of storytelling. The right soundtrack enhances mood, pacing, and emotional impact. social media platforms

Yet creators still struggle with:

  • Repetitive, overused music libraries
  • Strict licensing rules and the fear of copyright strikes
  • Difficulty standing out when everyone uses the same trending audio
  • Hours wasted searching for a track that “kind of” fits

Instead of focusing on editing or storytelling, many creators end up stuck browsing playlists — slowing down the creative process in an already saturated landscape.

Solution

Our AI Background Music Composer creates custom soundtracks based on:

  • The video you upload
  • Your musical preferences (style, instruments, BPM)

How it works

Video Understanding
A fine-tuned VLM analyzes visual cues — motion, color dynamics, scene transitions — to capture the rhythm and emotion of the footage.

Preference Blending
Users choose their desired vibe: lofi chill, cinematic orchestral, groovy electronic, etc.

Music Generation
A neural audio model composes original melodies and rhythms, aligning beats with visual transitions for a seamless feel.

The experience

Upload -> adjust a few sliders -> preview your soundtrack. A handcrafted vibe, delivered by AI in under two minutes.

Technical Approach

A multi-model pipeline designed for scalability, precision, and real-time usability.

  1. Video → Description (Qwen3–2B VLM)
    • Fine-tuned on the MIRADATA YouTube dataset
    • Outputs compact semantic descriptions of the video
  2. Description + Preferences → Prompt (music_gen_prompter LLM)
    • Structures user preferences + VLM output
    • Produces an optimized prompt for music generation
  3. Prompt → Music (Lyria 2)
    • Generates the final BGM track tailored to video pacing and mood

Infrastructure

To ensure performance and reliability:

  • Docker for containerization
  • Kubernetes for scalable orchestration
  • Docker Compose to keep services isolated and fault-tolerant
  • GitHub Actions for CI/CD
  • DVC for dataset versioning & automated retraining
  • REST APIs bridging models and front end
  • AWS deployment powering cloud-based generation
  • The final product is a responsive, lightweight web app that delivers music anywhere.

Impact

Our system doesn’t just help creators — it can reshape workflows across the entire video ecosystem.

For Platforms

Benefits

  • Integrates directly into editing software, mobile apps, or short-video platforms
  • Enables real-time, adaptive soundtrack generation inside the creator’s workflow
  • Replaces static libraries with endless AI-generated alternatives
  • Creates richer, more diverse audio ecosystems

For Creators

Benefits

  • Removes financial and technical barriers to professional-quality music
  • Eliminates copyright uncertainty
  • Expands creative flexibility through personalized soundtracks

By making music adapt to video — rather than forcing creators to adapt to limited libraries — we move toward a future where audio is as dynamic and expressive as the visuals it supports.