Updated:
https://create.arduino.cc/editor/tfabris/4c5eea9a-1462-45d7-908d-81a5bb6b0d90/preview

Track titles are much more reliable now. I fixed multiple bugs that would cause the track titles to sometimes not be parsed properly. Some of those bugs were new String/memory bugs that I induced when I made attempts to work around what I had incorrectly thought were String/memory bugs in the first place.

There is also now the check routine in there to confirm at program startup that the string buffer size is big enough, and will print an error on the serial port if it isn't big enough. Considering whether or not to do something like halt the program and make the LED blink if the string buffer isn't big enough, but I haven't gone that far since the worst thing that could happen is the track titles don't always work.