This will help you change the title theme song to something cool that you like.
First, open up script editor. Go to Scene_Title. Scroll down to line 194 and erase everything to 198. In its place, type in
# Play Sound effect
Audio.bgm_play("Audio/BGM/Town1", 100, 100)
Then, go to line 28 and erase everything on that line. Type in
Audio.bgm_play("Audio/BGM/Town1", 100, 100) # Play sound effect
That will play the music that came with the game called "Town1".
To change that, you will have to go to resource manager, go to Audio/BGM, scroll down to "Town 1", and click import. Find the file you want, name it Town 1, and click "OK".
You should see a red dot next to it now. It will play that song on the title.
hope this helps,
Johnny