Music disc

Step 1 - create the sound

Sounds

Step 2 - create the disc

Create a new item in your namespace, this will be your music disc:

  music_disc_cdk_sunday:
    display_name: display-name-music_disc_cdk_sunday
    permission: music_disc_cdk_sunday
    lore:
    - '&7Cdk - Sunday'
    resource:
      material: STICK
      generate: true
      textures:
      - item/music_disc_cdk_sunday.png
    behaviours:
      music_disc:
        song:
          name: my_sounds:music_disc.cdk_sunday
          description: Cdk - Sunday

As you can see I added a special behaviour called music_disc. This will tell Spigot server that this item is a custom music disc. name is the sound to be played, you added it in the step 1.