Ive managed to make it work, i was using wrong tags to the musics, now it needs to be like this inside the folder jukebox_song:




music file → bestofus.json



{
"comparator_output": 15,
"description": "Best of Us - Wier",
"length_in_seconds": 220.0,
"sound_event": {
"sound_id": "minecraft:music_disc.bestofus"
}
}



then is the resourcespack its neede a tag to the music



custom_music_disc_pack/
│
├── assets/
│ └── minecraft/ → inside here it need to contain a file called sounds.json
│   └── sounds/
│     └── records/
│       └── custom_disc.ogg # Your custom music disc file





here is an example of that file sounds.json



{
  "music_disc.bestofus": {
    "sounds": [
        {
        "name": "records/bestofus"
        }
      ]
    }

}