I found this site called “great scale fonts” and it offers some nice sounding free fonts to download.
Warning! I uploaded these to my sd card and played with them and blew up my 40mm 5w speaker!
I looked at the audio and found lots of sub frequencies (20hz) and the gain was very high (around the -2db range peaking at 0db) Certainly enough to blow most speakers.
I like to keep mine below -5db peak and -10db constant.
So if you want to use them I highly recommend that you high pass these and reduce the gain.