Change the weight of nether music

Currently, the new nether music (Chrysopoeia, Rubedo, and So Below) are 6-7 times more likely to play than the old songs. For example, in the crimson forest, Chrysopoeia is 7 times more likely to play than Dead Voxel. This seems too extreme in my opinion. Maybe the new music should be 4 times more likely to play, so it plays about half of the time?