diff --git a/api/src/main/java/com/viaversion/viaversion/api/minecraft/data/StructuredDataContainer.java b/api/src/main/java/com/viaversion/viaversion/api/minecraft/data/StructuredDataContainer.java
index 898f40ab2..f3d2acac4 100644
--- a/api/src/main/java/com/viaversion/viaversion/api/minecraft/data/StructuredDataContainer.java
+++ b/api/src/main/java/com/viaversion/viaversion/api/minecraft/data/StructuredDataContainer.java
@@ -165,7 +165,6 @@ public final class StructuredDataContainer {
         for (final StructuredData<?> data : data.values()) {
             final int mappedId = rewriter.applyAsInt(data.id());
             if (mappedId == -1) {
-                protocol.getLogger().warning("Could not find item data serializer for id " + data.id());
                 continue;
             }
 
diff --git a/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/JukeboxPlayable.java b/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/JukeboxPlayable.java
index 8c47ba650..e3a848a95 100644
--- a/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/JukeboxPlayable.java
+++ b/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/JukeboxPlayable.java
@@ -33,6 +33,14 @@ import io.netty.buffer.ByteBuf;
 
 public record JukeboxPlayable(Either<Holder<JukeboxSong>, String> song, boolean showInTooltip) {
 
+    public JukeboxPlayable(final Holder<JukeboxSong> song, final boolean showInTooltip) {
+        this(Either.left(song), showInTooltip);
+    }
+
+    public JukeboxPlayable(final String resourceKey, final boolean showInTooltip) {
+        this(Either.right(resourceKey), showInTooltip);
+    }
+
     public static final Type<JukeboxPlayable> TYPE = new Type<>(JukeboxPlayable.class) {
         @Override
         public JukeboxPlayable read(final ByteBuf buffer) {
diff --git a/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/PotDecorations.java b/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/PotDecorations.java
index 3ee279c1a..8b610e978 100644
--- a/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/PotDecorations.java
+++ b/api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/PotDecorations.java
@@ -22,7 +22,6 @@
  */
 package com.viaversion.viaversion.api.minecraft.item.data;
 
-import com.viaversion.viaversion.api.data.MappingData;
 import com.viaversion.viaversion.api.type.Type;
 import com.viaversion.viaversion.api.type.Types;
 import io.netty.buffer.ByteBuf;
diff --git a/api/src/main/java/com/viaversion/viaversion/util/Key.java b/api/src/main/java/com/viaversion/viaversion/util/Key.java
index 82af5b62c..0434f853c 100644
--- a/api/src/main/java/com/viaversion/viaversion/util/Key.java
+++ b/api/src/main/java/com/viaversion/viaversion/util/Key.java
@@ -47,7 +47,7 @@ public final class Key {
     }
 
     public static boolean equals(final String firstIdentifier, final String secondIdentifier) {
-        return stripNamespace(firstIdentifier).equals(stripNamespace(secondIdentifier));
+        return stripMinecraftNamespace(firstIdentifier).equals(stripMinecraftNamespace(secondIdentifier));
     }
 
     public static String namespaced(final String identifier) {
diff --git a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/Protocol1_20_5To1_21.java b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/Protocol1_20_5To1_21.java
index 20d4a73d6..c9cfeff96 100644
--- a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/Protocol1_20_5To1_21.java
+++ b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/Protocol1_20_5To1_21.java
@@ -34,7 +34,7 @@ import com.viaversion.viaversion.protocols.v1_20_3to1_20_5.packet.ServerboundCon
 import com.viaversion.viaversion.protocols.v1_20_3to1_20_5.packet.ServerboundPacket1_20_5;
 import com.viaversion.viaversion.protocols.v1_20_3to1_20_5.packet.ServerboundPackets1_20_5;
 import com.viaversion.viaversion.protocols.v1_20_5to1_21.data.AttributeModifierMappings1_21;
-import com.viaversion.viaversion.protocols.v1_20_5to1_21.data.MappingData;
+import com.viaversion.viaversion.protocols.v1_20_5to1_21.data.MappingData1_21;
 import com.viaversion.viaversion.protocols.v1_20_5to1_21.packet.ClientboundConfigurationPackets1_21;
 import com.viaversion.viaversion.protocols.v1_20_5to1_21.packet.ClientboundPacket1_21;
 import com.viaversion.viaversion.protocols.v1_20_5to1_21.packet.ClientboundPackets1_21;
@@ -43,6 +43,8 @@ import com.viaversion.viaversion.protocols.v1_20_5to1_21.rewriter.EntityPacketRe
 import com.viaversion.viaversion.rewriter.SoundRewriter;
 import com.viaversion.viaversion.rewriter.StatisticsRewriter;
 import com.viaversion.viaversion.rewriter.TagRewriter;
+import com.viaversion.viaversion.util.Key;
+import com.viaversion.viaversion.util.UUIDUtil;
 import java.util.Locale;
 import java.util.UUID;
 
@@ -50,7 +52,7 @@ import static com.viaversion.viaversion.util.ProtocolUtil.packetTypeMap;
 
 public final class Protocol1_20_5To1_21 extends AbstractProtocol<ClientboundPacket1_20_5, ClientboundPacket1_21, ServerboundPacket1_20_5, ServerboundPacket1_20_5> {
 
-    public static final MappingData MAPPINGS = new MappingData();
+    public static final MappingData1_21 MAPPINGS = new MappingData1_21();
     private final EntityPacketRewriter1_21 entityRewriter = new EntityPacketRewriter1_21(this);
     private final BlockItemPacketRewriter1_21 itemRewriter = new BlockItemPacketRewriter1_21(this);
     private final TagRewriter<ClientboundPacket1_20_5> tagRewriter = new TagRewriter<>(this);
@@ -112,7 +114,12 @@ public final class Protocol1_20_5To1_21 extends AbstractProtocol<ClientboundPack
     }
 
     public static UUID mapAttributeId(final String id) {
-        final UUID uuid = AttributeModifierMappings1_21.idToUuid(id);
+        UUID uuid = AttributeModifierMappings1_21.idToUuid(id);
+        if (uuid != null) {
+            return uuid;
+        }
+
+        uuid = UUIDUtil.parseUUID(Key.stripNamespace(id).toUpperCase(Locale.ROOT));
         return uuid != null ? uuid : UUID.randomUUID();
     }
 
@@ -161,7 +168,7 @@ public final class Protocol1_20_5To1_21 extends AbstractProtocol<ClientboundPack
     }
 
     @Override
-    public MappingData getMappingData() {
+    public MappingData1_21 getMappingData() {
         return MAPPINGS;
     }
 
diff --git a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/data/MappingData.java b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/data/MappingData1_21.java
similarity index 67%
rename from common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/data/MappingData.java
rename to common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/data/MappingData1_21.java
index 92aecd9af..91a0dc423 100644
--- a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/data/MappingData.java
+++ b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/data/MappingData1_21.java
@@ -19,14 +19,18 @@ package com.viaversion.viaversion.protocols.v1_20_5to1_21.data;
 
 import com.viaversion.nbt.tag.CompoundTag;
 import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.Tag;
 import com.viaversion.viaversion.api.data.MappingDataBase;
 import com.viaversion.viaversion.api.data.MappingDataLoader;
+import com.viaversion.viaversion.api.minecraft.RegistryEntry;
+import java.util.Map;
 
-public final class MappingData extends MappingDataBase {
+public final class MappingData1_21 extends MappingDataBase {
 
     private ListTag<CompoundTag> enchantments;
+    private CompoundTag jukeboxSongs;
 
-    public MappingData() {
+    public MappingData1_21() {
         super("1.20.5", "1.21");
     }
 
@@ -34,9 +38,20 @@ public final class MappingData extends MappingDataBase {
     protected void loadExtras(final CompoundTag data) {
         final CompoundTag extraMappings = MappingDataLoader.INSTANCE.loadNBT("enchantments-1.21.nbt");
         enchantments = extraMappings.getListTag("entries", CompoundTag.class);
+        jukeboxSongs = MappingDataLoader.INSTANCE.loadNBT("jukebox-songs-1.21.nbt");
     }
 
     public CompoundTag enchantment(final int id) {
         return enchantments.get(id).copy();
     }
+
+    public RegistryEntry[] jukeboxSongs() {
+        final RegistryEntry[] entries = new RegistryEntry[jukeboxSongs.size()];
+        int i = 0;
+        for (final Map.Entry<String, Tag> entry : jukeboxSongs.entrySet()) {
+            final CompoundTag tag = (CompoundTag) entry.getValue();
+            entries[i++] = new RegistryEntry(entry.getKey(), tag.copy());
+        }
+        return entries;
+    }
 }
diff --git a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/BlockItemPacketRewriter1_21.java b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/BlockItemPacketRewriter1_21.java
index 6667e0ccd..53c50dcc6 100644
--- a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/BlockItemPacketRewriter1_21.java
+++ b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/BlockItemPacketRewriter1_21.java
@@ -37,10 +37,13 @@ import com.viaversion.viaversion.protocols.v1_20_5to1_21.data.AttributeModifierM
 import com.viaversion.viaversion.rewriter.BlockRewriter;
 import com.viaversion.viaversion.rewriter.StructuredItemRewriter;
 import java.util.Arrays;
+import java.util.List;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 public final class BlockItemPacketRewriter1_21 extends StructuredItemRewriter<ClientboundPacket1_20_5, ServerboundPacket1_20_5, Protocol1_20_5To1_21> {
 
+    private static final List<String> DISCS = List.of("11", "13", "5", "blocks", "cat", "chirp", "far", "mall", "mellohi", "otherside", "pigstep", "relic", "stal", "strad", "wait", "ward");
+
     public BlockItemPacketRewriter1_21(final Protocol1_20_5To1_21 protocol) {
         super(protocol, Types1_20_5.ITEM, Types1_20_5.ITEM_ARRAY, Types1_21.ITEM, Types1_21.ITEM_ARRAY);
     }
@@ -51,7 +54,6 @@ public final class BlockItemPacketRewriter1_21 extends StructuredItemRewriter<Cl
         blockRewriter.registerBlockEvent(ClientboundPackets1_20_5.BLOCK_EVENT);
         blockRewriter.registerBlockUpdate(ClientboundPackets1_20_5.BLOCK_UPDATE);
         blockRewriter.registerSectionBlocksUpdate1_20(ClientboundPackets1_20_5.SECTION_BLOCKS_UPDATE);
-        blockRewriter.registerLevelEvent(ClientboundPackets1_20_5.LEVEL_EVENT, 1010, 2001);
         blockRewriter.registerLevelChunk1_19(ClientboundPackets1_20_5.LEVEL_CHUNK_WITH_LIGHT, ChunkType1_20_2::new);
         blockRewriter.registerBlockEntityData(ClientboundPackets1_20_5.BLOCK_ENTITY_DATA);
 
@@ -67,6 +69,26 @@ public final class BlockItemPacketRewriter1_21 extends StructuredItemRewriter<Cl
         registerLevelParticles1_20_5(ClientboundPackets1_20_5.LEVEL_PARTICLES, Types1_20_5.PARTICLE, Types1_21.PARTICLE);
         registerExplosion(ClientboundPackets1_20_5.EXPLODE, Types1_20_5.PARTICLE, Types1_21.PARTICLE); // Rewrites the included sound and particles
 
+        protocol.registerClientbound(ClientboundPackets1_20_5.LEVEL_EVENT, wrapper -> {
+            final int id = wrapper.passthrough(Types.INT);
+            wrapper.passthrough(Types.BLOCK_POSITION1_14);
+
+            final int data = wrapper.read(Types.INT);
+            if (id == 1010) {
+                final int jukeboxSong = itemToJubeboxSong(data);
+                if (jukeboxSong == -1) {
+                    wrapper.cancel();
+                    return;
+                }
+
+                wrapper.write(Types.INT, jukeboxSong);
+            } else if (id == 2001) {
+                wrapper.write(Types.INT, protocol.getMappingData().getNewBlockStateId(data));
+            } else {
+                wrapper.write(Types.INT, data);
+            }
+        });
+
         protocol.registerServerbound(ServerboundPackets1_20_5.USE_ITEM, wrapper -> {
             wrapper.passthrough(Types.VAR_INT); // Hand
             wrapper.passthrough(Types.VAR_INT); // Sequence
@@ -131,4 +153,14 @@ public final class BlockItemPacketRewriter1_21 extends StructuredItemRewriter<Cl
             return new AttributeModifiers1_20_5(modifiers, attributeModifiers.showInTooltip());
         });
     }
+
+    private int itemToJubeboxSong(final int id) {
+        String identifier = Protocol1_20_5To1_21.MAPPINGS.getFullItemMappings().identifier(id);
+        if (!identifier.contains("music_disc_")) {
+            return -1;
+        }
+
+        identifier = identifier.substring("minecraft:music_disc_".length());
+        return DISCS.indexOf(identifier);
+    }
 }
\ No newline at end of file
diff --git a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/EntityPacketRewriter1_21.java b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/EntityPacketRewriter1_21.java
index ebfed4e87..6ac278fcc 100644
--- a/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/EntityPacketRewriter1_21.java
+++ b/common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/rewriter/EntityPacketRewriter1_21.java
@@ -91,6 +91,11 @@ public final class EntityPacketRewriter1_21 extends EntityRewriter<ClientboundPa
             }
             enchantmentRegistryPacket.write(Types.REGISTRY_ENTRY_ARRAY, enchantmentRegistry);
             enchantmentRegistryPacket.send(Protocol1_20_5To1_21.class);
+
+            final PacketWrapper jukeboxSongsPacket = wrapper.create(ClientboundConfigurationPackets1_20_5.REGISTRY_DATA);
+            jukeboxSongsPacket.write(Types.STRING, "minecraft:jukebox_song");
+            jukeboxSongsPacket.write(Types.REGISTRY_ENTRY_ARRAY, protocol.getMappingData().jukeboxSongs());
+            jukeboxSongsPacket.send(Protocol1_20_5To1_21.class);
         });
 
         protocol.registerClientbound(ClientboundPackets1_20_5.LOGIN, new PacketHandlers() {
diff --git a/common/src/main/java/com/viaversion/viaversion/rewriter/BlockRewriter.java b/common/src/main/java/com/viaversion/viaversion/rewriter/BlockRewriter.java
index 8887032fb..d855104bc 100644
--- a/common/src/main/java/com/viaversion/viaversion/rewriter/BlockRewriter.java
+++ b/common/src/main/java/com/viaversion/viaversion/rewriter/BlockRewriter.java
@@ -20,6 +20,7 @@ package com.viaversion.viaversion.rewriter;
 import com.google.common.base.Preconditions;
 import com.viaversion.nbt.tag.CompoundTag;
 import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.data.MappingData;
 import com.viaversion.viaversion.api.data.Mappings;
 import com.viaversion.viaversion.api.data.entity.EntityTracker;
 import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
@@ -154,25 +155,26 @@ public class BlockRewriter<C extends ClientboundPacketType> {
     }
 
     public void registerLevelEvent(C packetType, int playRecordId, int blockBreakId) {
-        protocol.registerClientbound(packetType, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Types.INT); // Effect Id
-                map(positionType); // Location
-                map(Types.INT); // Data
-                handler(wrapper -> {
-                    int id = wrapper.get(Types.INT, 0);
-                    int data = wrapper.get(Types.INT, 1);
-                    if (id == playRecordId && protocol.getMappingData().getItemMappings() != null) {
-                        wrapper.set(Types.INT, 1, protocol.getMappingData().getNewItemId(data));
-                    } else if (id == blockBreakId && protocol.getMappingData().getBlockStateMappings() != null) {
-                        wrapper.set(Types.INT, 1, protocol.getMappingData().getNewBlockStateId(data));
-                    }
-                });
+        protocol.registerClientbound(packetType, wrapper -> {
+            final int id = wrapper.passthrough(Types.INT);
+            wrapper.passthrough(positionType);
+
+            final int data = wrapper.read(Types.INT);
+            final MappingData mappingData = protocol.getMappingData();
+            if (playRecordId != -1 && id == playRecordId && mappingData.getItemMappings() != null) {
+                wrapper.write(Types.INT, mappingData.getNewItemId(data));
+            } else if (id == blockBreakId && mappingData.getBlockStateMappings() != null) {
+                wrapper.write(Types.INT, mappingData.getNewBlockStateId(data));
+            } else {
+                wrapper.write(Types.INT, data);
             }
         });
     }
 
+    public void registerLevelEvent1_21(C packetType, int blockBreakId) {
+        registerLevelEvent(packetType, -1, blockBreakId);
+    }
+
     public void registerLevelChunk(C packetType, Type<Chunk> chunkType, Type<Chunk> newChunkType) {
         registerLevelChunk(packetType, chunkType, newChunkType, null);
     }
diff --git a/common/src/main/resources/assets/viaversion/data/jukebox-songs-1.21.nbt b/common/src/main/resources/assets/viaversion/data/jukebox-songs-1.21.nbt
new file mode 100644
index 000000000..004cfaece
Binary files /dev/null and b/common/src/main/resources/assets/viaversion/data/jukebox-songs-1.21.nbt differ
diff --git a/template/src/main/java/com/viaversion/viaversion/template/protocols/rewriter/BlockItemPacketRewriter1_99.java b/template/src/main/java/com/viaversion/viaversion/template/protocols/rewriter/BlockItemPacketRewriter1_99.java
index 15c643316..b07a3e2eb 100644
--- a/template/src/main/java/com/viaversion/viaversion/template/protocols/rewriter/BlockItemPacketRewriter1_99.java
+++ b/template/src/main/java/com/viaversion/viaversion/template/protocols/rewriter/BlockItemPacketRewriter1_99.java
@@ -46,7 +46,7 @@ public final class BlockItemPacketRewriter1_99 extends StructuredItemRewriter<Cl
         blockRewriter.registerBlockEvent(ClientboundPackets1_20_5.BLOCK_EVENT);
         blockRewriter.registerBlockUpdate(ClientboundPackets1_20_5.BLOCK_UPDATE);
         blockRewriter.registerSectionBlocksUpdate1_20(ClientboundPackets1_20_5.SECTION_BLOCKS_UPDATE);
-        blockRewriter.registerLevelEvent(ClientboundPackets1_20_5.LEVEL_EVENT, 1010, 2001);
+        blockRewriter.registerLevelEvent1_21(ClientboundPackets1_20_5.LEVEL_EVENT, 2001);
         blockRewriter.registerLevelChunk1_19(ClientboundPackets1_20_5.LEVEL_CHUNK_WITH_LIGHT, ChunkType1_20_2::new);
         blockRewriter.registerBlockEntityData(ClientboundPackets1_20_5.BLOCK_ENTITY_DATA);