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Media production lab

Music Composition

Write structured musical cues, audition them, and mix them under a scene.

Updated: September 2026

Map musical changes to the edit

HKGAI Music Generation produces an audio asset from tags and song structure. Plan the emotional arc separately from the visual prompt; a music node does not itself assemble a video.

  1. Mark where the scene opens, changes, and ends; decide whether it needs instrumental underscore or lyrics.
  2. On empty canvas choose Audio → Music Generation, place the node, and give the cue a recognizable Track name.

Write useful tags

The node needs nonempty Tags as well as Song structure / lyrics before Generate Music is enabled. Genre, tempo, mood, and instrumentation are more actionable than a list of unrelated adjectives.

  1. Try Tags “minimal piano, slow tempo, reflective, instrumental” for a quiet reveal.
  2. Keep vocal tags out of an instrumental cue; if narration is present, leave space in the arrangement for speech.

Give the piece a beginning and end

The song editor offers [intro], [verse], [chorus], [bridge], [inst], and [outro] insertion chips. Treat the markers as a short arrangement plan, not a guaranteed timeline in exact seconds.

  1. Enter “[intro] sparse keys; [verse] gentle pulse enters; [outro] resolve and fade;” in Song structure / lyrics.
  2. Generate once, then audition whether the transition coincides with the intended reveal; revise structure instead of appending contradictory tags.

Treat duration as a result to inspect

The Music Generation panel marks duration as API-controlled and provides an audio preview and download on success. Do not promise a fixed length based only on the desired edit.

  1. Listen to the complete result for an abrupt ending, unwanted voice, or noise; keep the preferred take.
  2. Connect its Audio output to Video Edit, enable Background music, and decide whether to loop or let it end naturally.

Check the mix and usage rights

A powerful music bed can mask narration even if both tracks are individually clean. Provider availability and rights to reuse source samples are separate questions.

  1. In Video Edit compare the original-volume control against the music-volume control, then listen on speakers and headphones.
  2. Check the license for any imported sample or reference; if Music Generation fails, ask an administrator to verify HKGAI music access without sharing secret values.

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