We are currently working on getting Binaries for all OSes, but for now, TimidityFE has only been compiled for Debian systems. All other OSes must compile from source as of now.
Getting TimidityFE up and running is as simple as 1,2,3!
sudo apt-get timidity
Yes, this is a basic way of getting it working, but as the project progresses, we'll find a more perminant solution.
To compile TimidityFE, you will need Code::Blocks, and GTK+.