diff --git a/rhythm_manager.gd b/rhythm_manager.gd
index a0a4334..bee9527 100644
--- a/rhythm_manager.gd
+++ b/rhythm_manager.gd
@@ -11,26 +11,67 @@ extends Node2D
 @export var tempo: int = 120
 @export var beats_per_measure: int = 4
 
+var beats_elapsed: int = 0
+var beat_time_start: float = 0.0
+var beat_time_elapsed: float = 0.0
 var seconds_per_beat: float
-var seconds_elapsed: float = 0.0
+var useconds_per_beat: float
+var song_time_elapsed: float = 0.0
+var total_time_elapsed: float = 0.0
+#var fmod: float
 var is_running: bool = false
+var start_time: float
+var end_time: float
+var ready_time: float
+var delay_time: float
 
 @onready var click_track: AudioStreamPlayer2D = %ClickTrack
 
 ## OVERRIDES
 
 func _ready() -> void:
+	ready_time = Time.get_ticks_usec()
+	print("Ready time: %s" % ready_time)
+	#var time_to_next_mix: float = AudioServer.get_time_to_next_mix() 
+	#print(time_to_next_mix)
+	#var output_latency: float = AudioServer.get_output_latency()
+	#print(output_latency)
+	#var mix_rate: float = AudioServer.get_mix_rate()
+	#print(mix_rate)
+	#delay_time = time_to_next_mix + output_latency
+	#print(delay_time)
 	seconds_per_beat = 60.0/float(tempo)
-	print(seconds_per_beat)
+	useconds_per_beat = seconds_per_beat * 1000000.0
+	#print(useconds_per_beat)
 
 func _process(_delta: float) -> void:
+	total_time_elapsed = Time.get_ticks_usec()
+	#print("total time: %s" % total_time_elapsed)
 	if is_running:
-		seconds_elapsed = Time.get_ticks_msec() / 1000.0
+		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
+		#print("beat time elapsed: %s" % beat_time_elapsed)
+		#fmod = fmod(total_time_elapsed, useconds_per_beat)
+		#print(fmod)
+		if beat_time_elapsed >= useconds_per_beat:
+			beats_elapsed += 1
+			print("that's beat %s in the books" % beats_elapsed)
+			beat_time_elapsed = 0.0
+			beat_time_start = song_time_elapsed
 
 func _input(event: InputEvent) -> void:
 	if event.is_action_pressed("ui_accept"):
-		is_running = true
-		click_track.play()
+		if is_running == false:
+			start_time = Time.get_ticks_usec()
+			print("start time: %s" % start_time)
+			is_running = true
+			click_track.play()
+		else:
+			click_track.stop()
+			is_running = false
+			end_time = Time.get_ticks_usec()
+			print("end_time: %s" % end_time)
 
 #func _physics_process(delta: float) -> void:
 	#pass