sometimes when you change the music too fast, the music like twice play so I have to /stopsound or using the Left arrow to pause.

Oh I didn't know about it! I'll check this out, thanks for the report ;)

I can't reproduce the bug, even though I change music very quickly... Are you sure this happens? This might just be another sound that is played Minecraft: for example if you play a CD in a jukebox, then change music, both will play because musics are not played in the same channel than CD because if you go far from it you won't hear it anymore while musics are played for you only

What? I often have this issue, or maybe because I paly music, I pause it I play it and I changed it very fast?

I tried to spam every key and I never had this problem. This is either caused by what I said in my previous message, or a problem from another mod