ScenarioBgmInfo is a BCSV table that defines the default background music that plays in a specific scenario. The file can be found in SMG2 in AudioRes/Info/StageBgmInfo.arc/root/ScenarioBgmInfo.bcsv. It contains the following fields:
|StageName||STRING_OFFSET||The internal galaxy name, for example RedBlueExGalaxy.|
|ScenarioNo||LONG||The scenario/star the music is played on. If set to 0 the music is played on all scenarios by default.|
|BgmIdName||STRING_OFFSET||ID name of the music, for example MBGM_SMG2_GALAXY_01.|
|StartType||LONG||0 = music already plays, 1 = music plays once Mario lands on ground|
|StartFrame||LONG||The frame on which the music will start to play.|
Make sure that StageBgmInfo also contains an entry for your galaxy. Editing only one of these files will crash the game!