Better End music discs not playing in Radio Jukebox

[RUTHINAS]

The four new music discs introduced by the mod Better End are mute when played in the Radio Jukebox, despite the timer advancing normally. The vanilla Jukebox works just fine, as does /playsound. Neither the Better End music disc items nor the Creative Music Disc configured for the proper audio track work.

The audio files are mono.

Where should one look to create some sort of compatibility with these two mods?

[Nydid]

I confirm