I have different ringtones for different people. I have Liberi Fatali fro VIII as my ringtone for work/bosses just to prepare myself for what is sure to be bad news of having to come into work or something. I have the SeeD song for my mom because usually calls me with stuff she wants me to do, and it makes me feel like I'm going on a SeeD mission. For my old roommate who was obsessed with Andrew WK I have the song "I get Wet" as his ringtone. There are a few others too. For my general ringtone, it's a song called The Great Deku Tree by the same roommate's metal band.