ESP32 playing multiple mixed wav files.

I followed this thread
http://forum.arduino.cc/index.php?topic=425349.0

which led me to this video about mixing with the teensy.


I learned that the limitation of playing multiple files is the cpu. So with the esp32 it should be a snap!

I have this speaker power am module


Does anyone have any links to some simple example programs like the video describes? The video shows a gui drag and drop code generator but I think it is specifically for the teensy.

Or is there a way to use features inherent in the esp32?

Thanks.