diff --git a/src/world/sound/BlockBreakSound.php b/src/world/sound/BlockBreakSound.php
index 39323259d..ccebeb126 100644
--- a/src/world/sound/BlockBreakSound.php
+++ b/src/world/sound/BlockBreakSound.php
@@ -30,13 +30,7 @@ use pocketmine\network\mcpe\protocol\LevelSoundEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelSoundEvent;
 
 class BlockBreakSound implements Sound{
-
-	/** @var Block */
-	private $block;
-
-	public function __construct(Block $block){
-		$this->block = $block;
-	}
+	public function __construct(private Block $block){}
 
 	public function encode(Vector3 $pos) : array{
 		return [LevelSoundEventPacket::nonActorSound(LevelSoundEvent::BREAK, $pos, false, RuntimeBlockMapping::getInstance()->toRuntimeId($this->block->getFullId()))];
diff --git a/src/world/sound/BlockPlaceSound.php b/src/world/sound/BlockPlaceSound.php
index 831c879a1..20c02a44e 100644
--- a/src/world/sound/BlockPlaceSound.php
+++ b/src/world/sound/BlockPlaceSound.php
@@ -30,13 +30,7 @@ use pocketmine\network\mcpe\protocol\LevelSoundEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelSoundEvent;
 
 class BlockPlaceSound implements Sound{
-
-	/** @var Block */
-	private $block;
-
-	public function __construct(Block $block){
-		$this->block = $block;
-	}
+	public function __construct(private Block $block){}
 
 	public function encode(Vector3 $pos) : array{
 		return [LevelSoundEventPacket::nonActorSound(LevelSoundEvent::PLACE, $pos, false, RuntimeBlockMapping::getInstance()->toRuntimeId($this->block->getFullId()))];
diff --git a/src/world/sound/BlockPunchSound.php b/src/world/sound/BlockPunchSound.php
index 03d3ded64..0c28ccfb8 100644
--- a/src/world/sound/BlockPunchSound.php
+++ b/src/world/sound/BlockPunchSound.php
@@ -33,13 +33,7 @@ use pocketmine\network\mcpe\protocol\types\LevelSoundEvent;
  * Played when a player attacks a block in survival, attempting to break it.
  */
 class BlockPunchSound implements Sound{
-
-	/** @var Block */
-	private $block;
-
-	public function __construct(Block $block){
-		$this->block = $block;
-	}
+	public function __construct(private Block $block){}
 
 	public function encode(Vector3 $pos) : array{
 		return [LevelSoundEventPacket::nonActorSound(
diff --git a/src/world/sound/ClickSound.php b/src/world/sound/ClickSound.php
index c02471f87..1ac8e18c9 100644
--- a/src/world/sound/ClickSound.php
+++ b/src/world/sound/ClickSound.php
@@ -28,13 +28,7 @@ use pocketmine\network\mcpe\protocol\LevelEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelEvent;
 
 class ClickSound implements Sound{
-
-	/** @var float */
-	private $pitch;
-
-	public function __construct(float $pitch = 0){
-		$this->pitch = $pitch;
-	}
+	public function __construct(private float $pitch = 0){}
 
 	public function getPitch() : float{
 		return $this->pitch;
diff --git a/src/world/sound/DoorSound.php b/src/world/sound/DoorSound.php
index 368136c91..598d44d45 100644
--- a/src/world/sound/DoorSound.php
+++ b/src/world/sound/DoorSound.php
@@ -28,13 +28,7 @@ use pocketmine\network\mcpe\protocol\LevelEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelEvent;
 
 class DoorSound implements Sound{
-
-	/** @var float */
-	private $pitch;
-
-	public function __construct(float $pitch = 0){
-		$this->pitch = $pitch;
-	}
+	public function __construct(private float $pitch = 0){}
 
 	public function getPitch() : float{
 		return $this->pitch;
diff --git a/src/world/sound/EntityLandSound.php b/src/world/sound/EntityLandSound.php
index a973e3ba5..5610cbfd2 100644
--- a/src/world/sound/EntityLandSound.php
+++ b/src/world/sound/EntityLandSound.php
@@ -34,16 +34,10 @@ use pocketmine\network\mcpe\protocol\types\LevelSoundEvent;
  * Played when an entity hits the ground after falling a distance that doesn't cause damage, e.g. due to jumping.
  */
 class EntityLandSound implements Sound{
-
-	/** @var Entity */
-	private $entity;
-	/** @var Block */
-	private $blockLandedOn;
-
-	public function __construct(Entity $entity, Block $blockLandedOn){
-		$this->entity = $entity;
-		$this->blockLandedOn = $blockLandedOn;
-	}
+	public function __construct(
+		private Entity $entity,
+		private Block $blockLandedOn
+	){}
 
 	public function encode(Vector3 $pos) : array{
 		return [LevelSoundEventPacket::create(
diff --git a/src/world/sound/EntityLongFallSound.php b/src/world/sound/EntityLongFallSound.php
index c6cd2a33a..1ad842dfa 100644
--- a/src/world/sound/EntityLongFallSound.php
+++ b/src/world/sound/EntityLongFallSound.php
@@ -33,13 +33,7 @@ use pocketmine\network\mcpe\protocol\types\LevelSoundEvent;
  * This is the bone-breaker "crunch" sound.
  */
 class EntityLongFallSound implements Sound{
-
-	/** @var Entity */
-	private $entity;
-
-	public function __construct(Entity $entity){
-		$this->entity = $entity;
-	}
+	public function __construct(private Entity $entity){}
 
 	public function encode(Vector3 $pos) : array{
 		return [LevelSoundEventPacket::create(
diff --git a/src/world/sound/EntityShortFallSound.php b/src/world/sound/EntityShortFallSound.php
index 722a3c1a3..86d873940 100644
--- a/src/world/sound/EntityShortFallSound.php
+++ b/src/world/sound/EntityShortFallSound.php
@@ -32,13 +32,7 @@ use pocketmine\network\mcpe\protocol\types\LevelSoundEvent;
  * Played when an entity hits the ground after falling a short distance.
  */
 class EntityShortFallSound implements Sound{
-
-	/** @var Entity */
-	private $entity;
-
-	public function __construct(Entity $entity){
-		$this->entity = $entity;
-	}
+	public function __construct(private Entity $entity){}
 
 	public function encode(Vector3 $pos) : array{
 		return [LevelSoundEventPacket::create(
diff --git a/src/world/sound/FizzSound.php b/src/world/sound/FizzSound.php
index 62b54ee16..035d51280 100644
--- a/src/world/sound/FizzSound.php
+++ b/src/world/sound/FizzSound.php
@@ -28,13 +28,7 @@ use pocketmine\network\mcpe\protocol\LevelEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelEvent;
 
 class FizzSound implements Sound{
-
-	/** @var float */
-	private $pitch;
-
-	public function __construct(float $pitch = 0){
-		$this->pitch = $pitch;
-	}
+	public function __construct(private float $pitch = 0){}
 
 	public function getPitch() : float{
 		return $this->pitch;
diff --git a/src/world/sound/LaunchSound.php b/src/world/sound/LaunchSound.php
index 11ef5ad1d..e50c27cf9 100644
--- a/src/world/sound/LaunchSound.php
+++ b/src/world/sound/LaunchSound.php
@@ -28,13 +28,7 @@ use pocketmine\network\mcpe\protocol\LevelEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelEvent;
 
 class LaunchSound implements Sound{
-
-	/** @var float */
-	private $pitch;
-
-	public function __construct(float $pitch = 0){
-		$this->pitch = $pitch;
-	}
+	public function __construct(private float $pitch = 0){}
 
 	public function getPitch() : float{
 		return $this->pitch;
diff --git a/src/world/sound/NoteInstrument.php b/src/world/sound/NoteInstrument.php
index b22bc2149..d4077d31d 100644
--- a/src/world/sound/NoteInstrument.php
+++ b/src/world/sound/NoteInstrument.php
@@ -52,12 +52,11 @@ final class NoteInstrument{
 		);
 	}
 
-	/** @var int */
-	private $magicNumber;
-
-	private function __construct(string $name, int $magicNumber){
+	private function __construct(
+		string $name,
+		private int $magicNumber
+	){
 		$this->Enum___construct($name);
-		$this->magicNumber = $magicNumber;
 	}
 
 	public function getMagicNumber() : int{
diff --git a/src/world/sound/NoteSound.php b/src/world/sound/NoteSound.php
index c8822a1a9..a3a788a57 100644
--- a/src/world/sound/NoteSound.php
+++ b/src/world/sound/NoteSound.php
@@ -28,18 +28,13 @@ use pocketmine\network\mcpe\protocol\LevelSoundEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelSoundEvent;
 
 class NoteSound implements Sound{
-
-	/** @var NoteInstrument */
-	private $instrument;
-	/** @var int */
-	private $note;
-
-	public function __construct(NoteInstrument $instrument, int $note){
-		if($note < 0 || $note > 255){
+	public function __construct(
+		private NoteInstrument $instrument,
+		private int $note
+	){
+		if($this->note < 0 || $this->note > 255){
 			throw new \InvalidArgumentException("Note $note is outside accepted range");
 		}
-		$this->instrument = $instrument;
-		$this->note = $note;
 	}
 
 	public function encode(Vector3 $pos) : array{
diff --git a/src/world/sound/PopSound.php b/src/world/sound/PopSound.php
index a706e6d03..a3fd57ae2 100644
--- a/src/world/sound/PopSound.php
+++ b/src/world/sound/PopSound.php
@@ -28,13 +28,7 @@ use pocketmine\network\mcpe\protocol\LevelEventPacket;
 use pocketmine\network\mcpe\protocol\types\LevelEvent;
 
 class PopSound implements Sound{
-
-	/** @var float */
-	private $pitch;
-
-	public function __construct(float $pitch = 0){
-		$this->pitch = $pitch;
-	}
+	public function __construct(private float $pitch = 0){}
 
 	public function getPitch() : float{
 		return $this->pitch;
diff --git a/src/world/sound/RecordSound.php b/src/world/sound/RecordSound.php
index 57051d5b6..97232725f 100644
--- a/src/world/sound/RecordSound.php
+++ b/src/world/sound/RecordSound.php
@@ -28,13 +28,7 @@ use pocketmine\math\Vector3;
 use pocketmine\network\mcpe\protocol\LevelSoundEventPacket;
 
 class RecordSound implements Sound{
-
-	/** @var RecordType */
-	private $recordType;
-
-	public function __construct(RecordType $recordType){
-		$this->recordType = $recordType;
-	}
+	public function __construct(private RecordType $recordType){}
 
 	public function encode(Vector3 $pos) : array{
 		return [LevelSoundEventPacket::nonActorSound($this->recordType->getSoundId(), $pos, false)];
diff --git a/src/world/sound/XpLevelUpSound.php b/src/world/sound/XpLevelUpSound.php
index b9e2737b2..4e20a067c 100644
--- a/src/world/sound/XpLevelUpSound.php
+++ b/src/world/sound/XpLevelUpSound.php
@@ -30,13 +30,7 @@ use function intdiv;
 use function min;
 
 class XpLevelUpSound implements Sound{
-
-	/** @var int */
-	private $xpLevel;
-
-	public function __construct(int $xpLevel){
-		$this->xpLevel = $xpLevel;
-	}
+	public function __construct(private int $xpLevel){}
 
 	public function getXpLevel() : int{
 		return $this->xpLevel;