I noticed you mentioned the volume of the initial music for your game. Here is a little piece of code you can use to set the starting volume for your game.
0 is no sound and 1 is max volume so if you copy and past this into your game it will set the default volume for music and sound effects in your game at 50%. At least this way people wont go deaf when they launch your game the first time.
init 990 python:
config.default_music_volume = 0.5
config.default_sfx_volume = 0.5