diff --git a/scripts/purge.gd b/scripts/purge.gd
index b86dbcb..9f559e1 100644
--- a/scripts/purge.gd
+++ b/scripts/purge.gd
@@ -1,6 +1,7 @@
 extends Node2D
 
 const ELITE_DAMAGE_PCT := 0.75
+const FLASH_HOLD_DURATION := 0.1
 const FLASH_FADE_DURATION := 0.6
 
 var _build_up_sound = preload("res://assets/music&sfx/sfx/purge_build_up.wav")
@@ -21,15 +22,27 @@ func _ready() -> void:
 	camera.shake(2.0, 0.5)
 	_play_sfx(_build_up_sound, "SFX")
 
-func _on_summon_circle_frame_changed() -> void:
-	if summon_circle.frame == 77:
-		_play_sfx(_flash_sound, "SFX", -10.0)
+const _SIGIL_TICK_PITCHES := {
+	34: 0.500,
+	38: 0.595,
+	47: 0.707,
+	56: 0.841,
+	63: 0.707,
+}
 
-func _play_sfx(stream: AudioStream, bus: String, volume_db: float = 0.0) -> void:
+func _on_summon_circle_frame_changed() -> void:
+	var frame := summon_circle.frame
+	if frame == 77:
+		_play_sfx(_flash_sound, "SFX", -10.0)
+	elif _SIGIL_TICK_PITCHES.has(frame):
+		_play_sfx(_flash_sound, "SFX", -16.0, _SIGIL_TICK_PITCHES[frame])
+
+func _play_sfx(stream: AudioStream, bus: String, volume_db: float = 0.0, pitch_scale: float = 1.0) -> void:
 	var asp = AudioStreamPlayer.new()
 	asp.stream = stream
 	asp.bus = bus
 	asp.volume_db = volume_db
+	asp.pitch_scale = pitch_scale
 	get_parent().add_child(asp)
 	asp.play()
 	asp.finished.connect(asp.queue_free)
@@ -67,6 +80,7 @@ func _flash() -> void:
 
 	var tween = create_tween()
 	tween.set_pause_mode(Tween.TWEEN_PAUSE_PROCESS)
+	tween.tween_interval(FLASH_HOLD_DURATION)
 	tween.tween_property(rect, "color:a", 0.0, FLASH_FADE_DURATION)
 	await tween.finished
 	queue_free()