You'll need to install the following packages to run the application:

apt-get install mpg123

The following commands will install the necessary python packages:

pip install mutagen
pip install flask
pip install pushjack

... and you're done. If you want to type less each time you run a python file than do this:

chmod +x run.py
chmod +x refreshlib.py
chmod +x tageditor.py

Then run the file by:

./run.py
./refreshlib.py
./tageditor.py