it's kinda fun now

click_track.tscn

@@ -0,0 +1,6 @@
+[gd_scene format=3 uid="uid://dduyumwk5v1ge"]
+
+[ext_resource type="AudioStream" uid="uid://b8n6p428csquv" path="res://assets/audio/full/eine-kleine-click.wav" id="1_048mw"]
+
+[node name="ClickTrack" type="AudioStreamPlayer2D" unique_id=1931221522]
+stream = ExtResource("1_048mw")

main.gd

@@ -0,0 +1,48 @@
+#@tool
+#@icon(icon_path: String)
+#class_name MyNode
+extends Node
+## Documentation comments
+
+## signal
+## enum
+## const
+## @export var
+var musicians: Array[Node]
+var musician_lights: Array[Node]
+
+@onready var rhythm_manager: RhythmManager = %RhythmManager
+@onready var conductor: AnimatedSprite2D = $Conductor
+@onready var conductor_light: PointLight2D = %ConductorLight
+@onready var click_track: AudioStreamPlayer2D = %ClickTrack
+
+## OVERRIDES
+
+func _ready() -> void:
+	musicians = get_tree().get_nodes_in_group("musicians")
+	musician_lights = get_tree().get_nodes_in_group("musician_lights")
+	rhythm_manager.connect("song_started", on_song_started)
+#func _process(delta: float) -> void:
+	#pass
+#
+#func _physics_process(delta: float) -> void:
+	#pass
+
+func _unhandled_input(event: InputEvent) -> void:
+	if event.is_action_pressed("ready"):
+		conductor.play("default")
+		conductor_light.visible = true
+		click_track.play()
+## CORE
+
+## PRIVATE/HELPER
+ 
+## RECEIVERS
+
+func on_song_started() -> void:
+	for musician in musicians:
+		musician.play("default")
+	for light in musician_lights:
+		light.visible = true
+
+## SETTERS/GETTERS

main.gd.uid

@@ -0,0 +1 @@
+uid://bjv7i1kmivfai

project.godot

@@ -47,6 +47,11 @@ start={
 "events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":32,"key_label":0,"unicode":32,"location":0,"echo":false,"script":null)
 ]
 }
+ready={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":82,"key_label":0,"unicode":114,"location":0,"echo":false,"script":null)
+]
+}
 
 [physics]
 

resources/light_occluder_polygon.tres

@@ -0,0 +1,4 @@
+[gd_resource type="OccluderPolygon2D" format=3 uid="uid://inxtfgsnw5sq"]
+
+[resource]
+polygon = PackedVector2Array(0, 12, 4, 13, 0, 14, -4, 13)

resources/point_light_texture.tres

@@ -0,0 +1,13 @@
+[gd_resource type="GradientTexture2D" format=3 uid="uid://d1li1mlxutaym"]
+
+[sub_resource type="Gradient" id="Gradient_lquwl"]
+interpolation_mode = 2
+offsets = PackedFloat32Array(0.5, 0.8)
+colors = PackedColorArray(1, 1, 1, 1, 0, 0, 0, 0)
+
+[resource]
+gradient = SubResource("Gradient_lquwl")
+width = 128
+fill = 1
+fill_from = Vector2(0.5, 0.5)
+fill_to = Vector2(0.85, 0.85)

rhythm_manager.gd

@@ -4,10 +4,11 @@ class_name RhythmManager
 extends Node2D
 ## Documentation comments
 
-## signal
+signal song_started()
 ## enum
 ## const
 
+@export var target_audio: AudioStreamPlayer2D
 @export var tempo: int = 120
 @export var beats_per_measure: int = 4
 
@@ -26,15 +27,17 @@ var click_track_stream: AudioStream
 #var delay_time: float
 
 @onready var beat_bar: ProgressBar = %BeatBar
-@onready var click_track: AudioStreamPlayer2D = %ClickTrack
+#@onready var click_track: AudioStreamPlayer2D = %ClickTrack
 @onready var beat_time_value: Label = %BeatTimeValue
 @onready var volume_bar_left: ProgressBar = %VolumeBarLeft
 @onready var volume_bar_right: ProgressBar = %VolumeBarRight
+@onready var volume_value_left: Label = %VolumeValueLeft
+@onready var volume_value_right: Label = %VolumeValueRight
 
 ## OVERRIDES
 
 func _ready() -> void:
-	click_track_stream = click_track.stream
+	#click_track_stream = click_track.stream
 	ready_time = Time.get_ticks_usec()
 	print("Ready time: %s" % ready_time)
 	print("Buses at index 0: %s" % AudioServer.get_bus_name(0))
@@ -52,6 +55,8 @@ func _process(_delta: float) -> void:
 	if is_running:
 		volume_bar_left.value = AudioServer.get_bus_peak_volume_left_db(0, 0)
 		volume_bar_right.value = AudioServer.get_bus_peak_volume_right_db(0, 0)
+		volume_value_left.text = str(snappedf(AudioServer.get_bus_peak_volume_left_db(0, 0), 0.1))
+		volume_value_right.text = str(snappedf(AudioServer.get_bus_peak_volume_right_db(0, 0), 0.1))
 		song_time_elapsed = total_time_elapsed - start_time
 		#print("song time elapsed: %s" % song_time_elapsed)
 		beat_time_elapsed = song_time_elapsed - beat_time_start
@@ -67,17 +72,18 @@ func _process(_delta: float) -> void:
 			beat_time_start = song_time_elapsed
 
 func _input(event: InputEvent) -> void:
-	if event.is_action_pressed("ui_accept"):
+	if event.is_action_pressed("start"):
 		if is_running == false:
 			start_time = Time.get_ticks_usec()
 			print("start time: %s" % start_time)
 			is_running = true
-			click_track.play()
+			target_audio.play()
 		else:
-			click_track.stop()
+			target_audio.stop()
 			is_running = false
 			end_time = Time.get_ticks_usec()
 			print("end_time: %s" % end_time)
+		song_started.emit()
 
 #func _physics_process(delta: float) -> void:
 	#pass

rhythm_manager.tscn

@@ -1,10 +1,11 @@
 [gd_scene format=3 uid="uid://ojisu2jrshsp"]
 
 [ext_resource type="Script" uid="uid://bhbfogebu1di5" path="res://rhythm_manager.gd" id="1_0wx20"]
-[ext_resource type="AudioStream" uid="uid://b8n6p428csquv" path="res://assets/audio/full/eine-kleine-click.wav" id="2_6v8l0"]
+[ext_resource type="PackedScene" uid="uid://dduyumwk5v1ge" path="res://click_track.tscn" id="2_6v8l0"]
 
-[node name="RhythmManager" type="Node2D" unique_id=2036637300]
+[node name="RhythmManager" type="Node2D" unique_id=2036637300 node_paths=PackedStringArray("target_audio")]
 script = ExtResource("1_0wx20")
+target_audio = NodePath("")
 
 [node name="RhythmUI" type="Control" parent="." unique_id=510351076]
 layout_mode = 3
@@ -47,7 +48,7 @@ text = "00000"
 [node name="VolumeContainer" type="HBoxContainer" parent="RhythmUI/VBoxContainer" unique_id=845038304]
 layout_mode = 2
 
-[node name="VolumeLabel" type="Label" parent="RhythmUI/VBoxContainer/VolumeContainer" unique_id=1552250086]
+[node name="VolumeLabelLeft" type="Label" parent="RhythmUI/VBoxContainer/VolumeContainer" unique_id=1552250086]
 layout_mode = 2
 text = "Volume L: "
 
@@ -56,15 +57,20 @@ unique_name_in_owner = true
 custom_minimum_size = Vector2(0, 24)
 layout_mode = 2
 size_flags_horizontal = 3
-min_value = -200.0
+min_value = -100.0
 max_value = 0.0
-fill_mode = 1
+step = 0.1
 show_percentage = false
 
+[node name="VolumeValueLeft" type="Label" parent="RhythmUI/VBoxContainer/VolumeContainer" unique_id=1495628968]
+unique_name_in_owner = true
+layout_mode = 2
+text = "-00.0"
+
 [node name="VolumeContainerRight" type="HBoxContainer" parent="RhythmUI/VBoxContainer" unique_id=1505527639]
 layout_mode = 2
 
-[node name="VolumeLabel" type="Label" parent="RhythmUI/VBoxContainer/VolumeContainerRight" unique_id=96518109]
+[node name="VolumeLabelRight" type="Label" parent="RhythmUI/VBoxContainer/VolumeContainerRight" unique_id=96518109]
 layout_mode = 2
 text = "Volume R: "
 
@@ -73,11 +79,15 @@ unique_name_in_owner = true
 custom_minimum_size = Vector2(0, 24)
 layout_mode = 2
 size_flags_horizontal = 3
-min_value = -200.0
+min_value = -100.0
 max_value = 0.0
-fill_mode = 1
+step = 0.1
 show_percentage = false
 
-[node name="ClickTrack" type="AudioStreamPlayer2D" parent="." unique_id=875092300]
+[node name="VolumeValueRight" type="Label" parent="RhythmUI/VBoxContainer/VolumeContainerRight" unique_id=1882589387]
+unique_name_in_owner = true
+layout_mode = 2
+text = "-00.0"
+
+[node name="ClickTrack" parent="." unique_id=1931221522 instance=ExtResource("2_6v8l0")]
 unique_name_in_owner = true
-stream = ExtResource("2_6v8l0")