In film, music is fixed to the picture. In games, the player controls the timing, so music has to adapt.
Vertical layering
The same piece is split into layers, such as pads, percussion, bass and melody, that play in sync. The game fades layers in and out with the situation: exploration uses pads only, danger adds percussion, combat adds everything. Stems from a generated track can be used this way if they line up.
Horizontal re-sequencing
The music is split into sections that the game plays in different orders: an exploration loop, a transition, a combat loop and an ending. When the state changes, the game waits for the next bar line and switches sections so the change sounds musical.
Stingers
Short cues such as a victory fanfare, item pickup or warning play over or between the main music. Keep them in the same key as the area’s music.
Practical tips
- Generate all music for one area in the same key and tempo so layers and sections fit together.
- Ask for "seamless loop, no ending" for loop sections.
- Use WAV or a gapless format such as Ogg Vorbis; MP3 can add tiny gaps that break loops.
- Leave headroom; the game mixes music with sound effects and dialogue.
Tools
Middleware such as FMOD and Wwise, and the audio systems in engines such as Unity, Unreal and Godot, support layering and transitions on bar lines. Start simple: two layers and one transition already make a big difference.
Written by the Sonvela editorial team with AI drafting assistance, then checked against the sources linked in the text. Spotted an error? Tell us and we will correct it.