I'm trying to add a new music disc but when I put it in a jukebox, it doesn't play anything and doesn't give the "Now Playing:" notification. I have the sound file and sounds.json, which looks fine when I compared with working examples.
The song on my disc will be called "Twoster".

A class that holds the discs I add:

/* Import statements */
public class ModRecords
{
	public static final List<ItemRecord> RECORDS = new ArrayList<ItemRecord>();
	
	// Test record/music disc
	public static final ItemRecord RECORD_TWOSTER = new RecordBase("record_twoster", SoundsHandler.RECORD_TWOSTER);
}

RecordBase extends ItemRecord and calls super() with its parameters

SoundsHandler:

/* Import statments */
public class SoundsHandler
{
	public static SoundEvent RECORD_TWOSTER;
	
	public static void registerSounds()
	{
		RECORD_TWOSTER = registerSound("record.twoster");
	}
	
	private static SoundEvent registerSound(String name)
	{
		SoundEvent event = new SoundEvent(new ResourceLocation(name));
		event.setRegistryName(name);
		ForgeRegistries.SOUND_EVENTS.register(event);
		return event;
	}
}

(I have some java experience but am new to modding, so sorry if the problem is obvious.)

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