diff --git a/main.py b/main.py
index a6b070c..2791c46 100644
--- a/main.py
+++ b/main.py
@@ -1,33 +1,76 @@
-#!/bin/python3
+#!/bin/python3 -u
 
-import RPi.GPIO as GPIO # Import Raspberry Pi GPIO library
+## -U option log to syslog on systemctl
+
+import RPi.GPIO as GPIO
 import pygame
 import threading
+from datetime import datetime, timedelta
 import time
+import random
 
-def play_sound():
+## Define sounds path
+intro = "/home/museoa/INTRO_CHIMES.mp3"
+night = "/home/museoa/MEP_NOCHE.mp3"
+
+# Define mute hours
+# From 9.00 to 21.00
+open_hour = 9
+close_hour = 21
+
+
+
+def _play(path):
     if not pygame.mixer.music.get_busy() :
-        print("Start Sound")
-        pygame.mixer.music.play()
+        pygame.mixer.music.load(path)
+        pygame.mixer.music.play(0,0.0)
         while pygame.mixer.music.get_busy():
             pygame.time.Clock().tick(10)
+        print("Ended Sound");
+        pygame.mixer.music.stop()
+
+
+def play_sound():
+    print("play now..")
+    sounds = [night]
+    if not pygame.mixer.music.get_busy() :
+        print("Start Sound")
+        _play(intro)
+        _play(random.choice(sounds))
     else :
         print("Stop Sound")
-        pygame.mixer.music.stop()
+        pygame.mixer.music.fadeout(5)
 
 def button_callback(channel):
     print("Button was pushed!")
-    x = threading.Thread(target=play_sound)
-    x.start()
+
+    # from 9.00 to 21.00
+    now = datetime.now()
+    if (now.hour < close_hour and now.hour >= open_hour):
+        x = threading.Thread(target=play_sound)
+        x.start()
 
 
-## init pygame
-pygame.mixer.init()
-pygame.mixer.music.load('./audio.mp3')
+def main():
+    ## init pygame
+    pygame.mixer.init()
 
-GPIO.setwarnings(False) # Ignore warning for now
-GPIO.setmode(GPIO.BOARD) # Use physical pin numbering
-GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) # Set pin 10 to be an input pin and set initial value to be pulled low (off)
-GPIO.add_event_detect(10,GPIO.RISING,callback=button_callback, bouncetime=10000) # Setup event on pin 10 rising edge 10s wait
-message = input("Press enter to quit\n\n") # Run until someone presses enter
-GPIO.cleanup() # Clean up
+    GPIO.setwarnings(False) # Ignore warning for now
+    GPIO.setmode(GPIO.BOARD) # Use physical pin numbering
+    GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) # Set pin 10 to be an input pin and set initial value to be pulled low (off)
+    GPIO.add_event_detect(10,GPIO.RISING,callback=button_callback, bouncetime=10000) # Setup event on pin 10 rising edge 10s wait
+
+    while (True): 
+        ## Play schedule
+        now = datetime.now()
+        ## 20:00 AM
+        if (now.hour == 20 and now.minute == 0):
+            _play(intro)
+            _play(night)
+        
+        time.sleep(60)
+
+    GPIO.cleanup() # Clean up
+
+if __name__ == "__main__":
+    main()