Act as a professional music composer with 10+ years of experience in creating background scores for digital content. Generate a [GENRE] background music track tailored for a [CONTENT_TYPE] YouTube video (e.g., vlog, tutorial, gaming). The track should be [MOOD] (e.g., upbeat, calming, intense) and [DURATION] seconds long, with seamless loops for extended use. Ensure the music is royalty-free, non-distracting, and complements the video’s tone without overpowering the narration. Include dynamic variations to maintain listener engagement. Provide a downloadable link in [FILE_FORMAT] (e.g., MP3, WAV) with metadata for easy attribution.