pak is a compression format that requires special tools to decompress. You can try to open it with ordinary tools. e_song**.pak, n_song**.pak, h_song**.pak in the rnr_music folder are music files of QQ Sonic. The ones starting with e are star songs, the ones starting with n are moon songs, and the ones starting with h are sun songs. The important thing is that the music in pak has no notes. That is to say, although the songs in the pak file can be played after opening it, the effect when playing is the same as the songs in the sound speed when you don't play QQ Sound Speed. There are no notes.

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