How build and install?

unpack deadbeef source tarball
cd deadbeef-X.Y.Z/
git clone git://github.com/asv/deadbeef-debian.git debian
dpkg-buildpackage -rfakeroot -us -uc -i -I".git"
...
sudo dpkg -i ../deadbeef_X.Y.Z-R_yourarch.deb
Enjoying DeaDBeeF! :)