Random ringtone/notification sound

I get the exact same sound that I can’t put my fingers on what apple sound it is. It always happens when I’m in the car and no idea what it is tied to. And today it kept happened about 4 times in every 15 minutes or less. It’s annoying for one because I tend to get hyperfixated on trying to solve what it is and I can’t because I’m driving.

the sounds I was able to figure out if you know keys is F C A A# C F C A G C A# G…and keeps going. I don’t know what is setting it off unless it’s a bug.

help me