Notica

Evidence

Ran on Kiln's test stand (2026-11-04): NoticaInit did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload; NoticaClientInit did not start: java.lang.NoClassDefFoundError: net/minecraft/core/RegistryAccess.

What it needs from Kiln

• Mixin
• com.mojang.authlib.GameProfile
• com.mojang.blaze3d.audio.Channel
• com.mojang.blaze3d.audio.Library
• com.mojang.blaze3d.audio.Library.Pool
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStarted
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStopping
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.Context
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.PlayPayloadHandler
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents
• net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents.AfterPlayerChange
• net.fabricmc.fabric.api.event.EventFactory
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndLevelTick
• net.fabricmc.fabric.api.networking.v1.EntityTrackingEvents
• net.fabricmc.fabric.api.networking.v1.EntityTrackingEvents.StartTracking
• net.fabricmc.fabric.api.networking.v1.EntityTrackingEvents.StopTracking
• net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
• net.fabricmc.fabric.api.networking.v1.PlayerLookup
• net.fabricmc.fabric.api.networking.v1.ServerLoginConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerLoginConnectionEvents.Disconnect
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.Context
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.PlayPayloadHandler
• net.minecraft.client.Options
• net.minecraft.client.resources.sounds.AbstractSoundInstance
• net.minecraft.client.resources.sounds.Sound
• net.minecraft.client.resources.sounds.Sound.Type
• net.minecraft.client.resources.sounds.SoundInstance
• net.minecraft.client.resources.sounds.SoundInstance.Attenuation
• net.minecraft.client.sounds.AudioStream
• net.minecraft.client.sounds.ChannelAccess
• net.minecraft.client.sounds.ChannelAccess.ChannelHandle
• net.minecraft.client.sounds.FiniteAudioStream
• net.minecraft.client.sounds.JOrbisAudioStream
• net.minecraft.client.sounds.SoundBufferLibrary
• net.minecraft.client.sounds.SoundEngine
• net.minecraft.client.sounds.SoundEngine.PlayResult
• and 72 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Play note block songs in the .nbs file format in-game! Works on servers and in singleplayer with vanilla compatibility. Optimizes song playback and extends Minecraft's note octave range.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file notica-2.1.0+26.3.jar. The scan reads the mod's classes; it does not run them.