I Built an AI Music Video SaaS: How I Handled a 17-Minute AI-Generated Video

Generating a 30-second AI clip is a hobby. Generating a 17-minute coherent music video is an engineering challenge. I recently launched GetLyricVideo.com, and while the average user creates 3-minute tracks, one power user just pushed my pipeline to the limit with a 17-minute production. Here is the technical breakdown of the multi-stage AI workflow I built to handle this, and the hurdles I had to clear. 1. The Pipeline: From Raw Lyrics to Cinematic Story A "Black Box" approach doesn't work for music videos. I built a multi-step orchestration layer: Lyric Intelligence: First, the system uses LLMs to parse the raw text, identifying the "vibe" and structure (Chorus, Verse, Bridge) while extracting precise timestamps. The "AI Director" (Scripting): The engine doesn't just generate images; it writes a Visual Script. It breaks the song into scenes, describing the camera movement and lighting for every 5-10 seconds. Prompt Engineering: The script is then translated into optimized prompts for