It's kind of silly, but a long time ago when I pirated more games and software, I stumbled onto one of these key generators for one of my programs that I thought just had the best chiptune lol. Anyway, it has been my ringtone for years and years now.

My text tone is the RCT1/2 notification sound. Works perfectly as a phone notification noise haha. I've had this one for years and years too.