I figured out why the android app was failing immediately. It was trying to read the sdcard folder but did not have permission. You have to add the permission for .READ_EXTERNAL_STORAGE and I think .WRITE_EXTERNAL_STORAGE to gain access to directories. But once I got that sorted out the mp3 started playing and most of the buttons worked. If I try to display the playlist it crashes.
Blender/ Udemy Course
More lectures today. I learned about bump maps and displacement maps/modifiers. These types of things lets you add details without increasing the geometry which would cause more processing during renders.
Here is a render where you can see the floor material does not line up correctly.
I added some more lights, the material lines up but is offset to the side.
I used Pinta a simple graphics program for linux to redo the material. The blue is a little too bright but I can fix that later.
Here is an outside render with the ground surrounding made from a displacement texture.