diff --git a/scenes/MultiMorseBanner.tscn b/scenes/MultiMorseBanner.tscn
index a9a5267..255334d 100644
--- a/scenes/MultiMorseBanner.tscn
+++ b/scenes/MultiMorseBanner.tscn
@@ -1,6 +1,9 @@
-[gd_scene load_steps=2 format=3 uid="uid://ug3u6jf36dst"]
+[gd_scene load_steps=3 format=3 uid="uid://ug3u6jf36dst"]
 
-[ext_resource type="Script" uid="uid://j1oei8suq5sj" path="res://scenes/morse_banner.gd" id="1_a1ve8"]
+[ext_resource type="Script" uid="uid://b1k6j1jti114u" path="res://scenes/multi_morse_banner.gd" id="1_a1ve8"]
+
+[sub_resource type="AudioStreamGenerator" id="AudioStreamGenerator_a1ve8"]
+mix_rate = 22050.0
 
 [node name="MorseBanner" type="Control"]
 custom_minimum_size = Vector2(200, 100)
@@ -11,3 +14,8 @@ anchor_bottom = 1.0
 grow_horizontal = 2
 grow_vertical = 2
 script = ExtResource("1_a1ve8")
+
+[node name="Player" type="AudioStreamPlayer" parent="."]
+stream = SubResource("AudioStreamGenerator_a1ve8")
+volume_db = -100.0
+stream_paused = true
diff --git a/scenes/MultiplayerConnect.tscn b/scenes/MultiplayerConnect.tscn
index 341033f..308c4c2 100644
--- a/scenes/MultiplayerConnect.tscn
+++ b/scenes/MultiplayerConnect.tscn
@@ -78,6 +78,10 @@ text = "Freq:"
 unique_name_in_owner = true
 layout_mode = 2
 
+[node name="PlayerContainer" type="VBoxContainer" parent="MorseView/VBoxContainer"]
+unique_name_in_owner = true
+layout_mode = 2
+
 [node name="MorseButton" type="Button" parent="MorseView/VBoxContainer"]
 layout_mode = 2
 size_flags_vertical = 3
@@ -87,3 +91,5 @@ text = "MORSE"
 [connection signal="pressed" from="ConnectView/VBoxContainer/HBoxContainer/CreateButton" to="." method="_on_create_button_pressed"]
 [connection signal="pressed" from="ConnectView/VBoxContainer/RefreshButton" to="." method="_on_refresh_button_pressed"]
 [connection signal="item_clicked" from="ConnectView/VBoxContainer/FreqList" to="." method="_on_freq_list_join"]
+[connection signal="button_down" from="MorseView/VBoxContainer/MorseButton" to="." method="_on_morse_button_button_down"]
+[connection signal="button_up" from="MorseView/VBoxContainer/MorseButton" to="." method="_on_morse_button_button_up"]
diff --git a/scenes/multi_morse_banner.gd b/scenes/multi_morse_banner.gd
index 974bf3f..04c4811 100644
--- a/scenes/multi_morse_banner.gd
+++ b/scenes/multi_morse_banner.gd
@@ -1,14 +1,59 @@
 @tool
+class_name MultiMorseBanner
 extends Control
 
+static var sample_hz := 22050.0
+static var vol_on := -30
+var phase := 0.0
+
+var num: int
+var tone_hz: int
 var color_on := Color(0, 128, 0)
 var color_off := Color(0, 0, 0)
 var last_delta := 0.0
 @export_range(0.1, 120.0) var display_sec := 5.0
 @export var stretch_display := false
+var playback;
+
+func _ready() -> void:
+	$Player.stream.mix_rate = sample_hz
+	$Player.volume_db = -100
+	$Player.play()
+	playback = $Player.get_stream_playback()
+	fill_buffer()
 
 var morse_step_perc := 0.45
+const MMB_SCENE := preload("res://scenes/MultiMorseBanner.tscn")
 
+class LocalMorseState:
+	var states: Array[int] = []
+	var curr_state := false
+	var last_change: int = 0
+	var start_time := 0
+
+	func reset() -> void:
+		last_change = Time.get_ticks_msec()
+		start_time = last_change
+		states = []
+
+	func set_state(state: bool) -> void:
+		if state == curr_state:
+			return
+		curr_state = state
+		
+		var now := Time.get_ticks_msec()
+		states.push_back(now - last_change)
+		last_change = now
+
+var morse_state := LocalMorseState.new()
+
+static func new_banner(num: int, color: Color, tone: int):
+	var mmb = MMB_SCENE.instantiate()
+	mmb.num = num
+	mmb.color_on = color
+	mmb.tone_hz = tone
+	
+	return mmb
 
 func _draw_morse_rect(x: float, width: float, state: bool):
 	var rect := Rect2(max(x, 0.0), morse_step_perc * size.y, width, (0.5 - morse_step_perc) * size.y)
@@ -22,18 +67,18 @@ func _draw():
 	if Engine.is_editor_hint():
 		return
 
-	var morse_on := MorseState.curr_state
-	var first_time := Time.get_ticks_msec() - MorseState.last_change
+	var morse_on := morse_state.curr_state
+	var first_time := Time.get_ticks_msec() - morse_state.last_change
 	var curr_x := float(size.x)
 	
 	var px_per_s := 0.0
 	if not stretch_display:
 		px_per_s = size.x / display_sec
 	else:
-		px_per_s = size.x / (Time.get_ticks_msec() - MorseState.start_time) * 1000.0
+		px_per_s = size.x / (Time.get_ticks_msec() - morse_state.start_time) * 1000.0
 	
-	for n in [-1] + range(MorseState.states.size() - 1, -1, -1):
-		var duration := first_time if n == -1 else MorseState.states[n]
+	for n in [-1] + range(morse_state.states.size() - 1, -1, -1):
+		var duration := first_time if n == -1 else morse_state.states[n]
 		var rect_width: float = min(duration / 1000.0 * px_per_s, curr_x)
 		curr_x -= rect_width
 		if morse_on:
@@ -46,3 +91,21 @@ func _draw():
 func _process(_delta):
 	last_delta += _delta
 	queue_redraw()
+	fill_buffer()
+
+func set_morse_state(state: bool) -> void:
+	morse_state.set_state(state)
+	# morse_state = state
+	if state:
+		$Player.volume_db = vol_on
+	else:
+		$Player.volume_db = -100
+	
+func fill_buffer():
+	var increment = tone_hz / sample_hz
+	var frames_available = playback.get_frames_available()
+
+	for i in range(frames_available):
+		playback.push_frame(Vector2.ONE * sin(phase * TAU))
+		phase = fmod(phase + increment, 1.0)
+		
diff --git a/scenes/multiplayer_connect.gd b/scenes/multiplayer_connect.gd
index da121a1..ef425b6 100644
--- a/scenes/multiplayer_connect.gd
+++ b/scenes/multiplayer_connect.gd
@@ -4,10 +4,32 @@ var server := "localhost"
 var port := "3784"
 var ws := WebSocketPeer.new()
 
-var mb_scene := preload("res://scenes/MultiMorseBanner.tscn")
 var available_freqs = []
+var mmb_self: MultiMorseBanner
+var mmb_others: Dictionary[String, MultiMorseBanner]
+
+class PlayerData:
+	var num: int
+	var color: Color
+	var tone: int
+	
+	func _init(num, color, tone):
+		self.num = num
+		self.color = color
+		self.tone = tone
+
+var player_data := [
+	PlayerData.new(0, Color(  0, 255,   0), 880),
+	PlayerData.new(1, Color(255,   0,   0), 880),
+	PlayerData.new(2, Color(  0,   0, 255), 880),
+	PlayerData.new(3, Color(255,   0, 255), 880),
+]
 
 func _ready() -> void:
+	# FIXME: connection handling / reconnect
+	# FIXME: status / error messages
+	# FIXME: randomize default join frquency
+	# FIXME: automatic refresh
 	print("ws://%s:%s" % [server, port])
 	ws.connect_to_url("ws://%s:%s" % [server, port])
 	
@@ -31,6 +53,9 @@ func _handle_packet() -> void:
 	print("parsed ", parsed)
 		
 	match parsed["type"]:
+		"hello":
+			# fetch frequency list on first join
+			_on_refresh_button_pressed()
 		"join":
 			_join_freq(parsed["freq"])
 
@@ -42,7 +67,14 @@ func _handle_packet() -> void:
 				var idx: int = %FreqList.add_item(text)
 				%FreqList.set_item_metadata(idx, freq)
 
-func _join_freq(freq: String):
+func _join_freq(freq: String, player_id: String, other_players: Array[String]):
+	for child in %PlayerContainer.get_children():
+		%PlayerContainer.remove_child(child)
+		
+	mmb_self = make_player(0)
+	for n, player_id in enumeerate(other_players):
+		make_player(n + 1) 
+	
 	%FreqLabel.text = "%s MHz" % freq
 	%ConnectView.hide()
 	%MorseView.show()
@@ -66,4 +98,26 @@ func _on_freq_list_join(index: int, at_position: Vector2, mouse_button_index: in
 	print("Yop ", index, " metadata ", freq)
 	var join_cmd := {"cmd": "join", "freq": freq, "type": "cw-generator"}
 	ws.send_text(JSON.stringify(join_cmd) + "\n")
+
+func make_player(no: int):
+	var pd: PlayerData
+	if no < player_data.size():
+		pd = player_data[no]
+	else:
+		pd = PlayerData.new(no, Color(randi_range(0, 255), randi_range(0, 255), randi_range(0, 255)), randi_range(440, 440 * 3))
 	
+	var mmb = MultiMorseBanner.new_banner(pd.num, pd.color, pd.tone)
+	%PlayerContainer.add_child(mmb)
+	return mmb
+
+
+func _on_morse_button_button_down() -> void:
+	if not mmb_self:
+		return
+	mmb_self.set_morse_state(true)
+
+
+func _on_morse_button_button_up() -> void:
+	if not mmb_self:
+		return
+	mmb_self.set_morse_state(false)
diff --git a/signalsrv/signalsrv.py b/signalsrv/signalsrv.py
index 0e2bbec..86edb8b 100644
--- a/signalsrv/signalsrv.py
+++ b/signalsrv/signalsrv.py
@@ -92,7 +92,7 @@ class Client:
 
         self.curr_freq = freq
         self.freqs[freq] = [self]
-        await self._send(type="join", freq=self.curr_freq, others=[])
+        await self._send(type="join", freq=self.curr_freq, self_id=self.id, others=[])
 
     async def _join_room(self, data):
         if self.curr_freq:
@@ -108,9 +108,12 @@ class Client:
             await self._send_error(f"Frequency {freq} not available")
             return
 
+        self.curr_freq = freq
         self.freqs[freq].append(self)
         # FIXME: do we need locking here?
-        await self._send(type="join", freq=self.curr_freq, players=[c.id for c in self._others(freq)])
+        print("FREQ", self.curr_freq, freq, self.freqs)
+        await self._send(type="join", freq=self.curr_freq, self_id=self.id, players=[c.id for c in self._others(freq)
+                                                                                     if not c.id == self.id])
         for other in self._others(freq):
             await self._send(type="player-joined", player=self.id)