I'm not sure if the 2 bin you posted are archives.
I can clearly see the Nintendo ADPCM data (8 bytes patterns) but I don't see any structure of an archive format.
They are actually the archive files for each song in-game. It got the data for the song's timelines for lyrics and stuff, so that's normal that you see an ADPCM header. It's probably the preview audio of the song. The old script used to work with the song archives, well it used to work with ALL .bin files but your latest broke everything. None of the .bin files work anymore. This is the Wii version by the way, please find a way to fix this issue.