Simply, this. It could use coal or something else to generate FE/RF and recharge items that need it, in the player's inventory.
This is the wrong place for posting this.
Do you mean the sources? There's a button on the project page with a link to them, if available.
https://minecraft.curseforge.com/projects/tallgates (not mine, but hey)
In reply to asiekierka:
Simply, a mod which adds an advanced note block which can play any sound, with the specified pitch. It could also import sounds from the local computer, server, or from internet.
Good luck and many thanks for anyone who would like to try to do this.