Because I am studying the effect of music and sounRAB on mice. For example in the morning their will be birRAB chirping, in the after noon there will be classical music. When I give them water there will be a raining sounRAB. Between afternoon and evening there will be silence. At night there will be a book on take and after that crickets. Finally for about 8 hours during the night there will be silence. I am a bit crazy but what the hell. Any recomendations would be really appreciated. I want it to be completely automated because I have a really bussy schedule. Thanks