Designed for Forge 10.13.4.1614 and GT New Horizons-compatible environments.

Features

Custom audio for this type of items:

Music Discs

Player Heads

Requirements

All commands use the /customdiscs root.

Command	Description
`/customdiscs create <filename> [title]`	Assign an audio file to the held item
`/customdiscs download <url> <filename>`	Download an allowed audio file through the server (But its better to use other method, write about it below)
`/customdiscs range <blocks>`	Set the playback range
`/customdiscs revert`	Remove CustomDiscs data from the held item
`/customdiscs setmodel [name-or-id]`	Select or apply a custom model
`/customdiscs revertmodel`	Remove the custom model ID
`/customdiscs reload`	Reload configuration and language files
`/customdiscs volume <disc\\|head\\|horn> <0-100>`	Set local volume for a category

volume is handled locally by the client. Other commands are handled by the server.

Simply put your downloaded music in this directory

.minecraft/config/customdiscs/musicdata/

Rules

Filename must be without space’s
(Use __ instead: like there harmonic_noise.mp3)
The server reads the source file and sends audio data to the client. The client stores the received data in its own cache and does not access the server’s filesystem.

So that’s all

Feel free to comment