[CentOS] How to install packages from git.centos.org

Hi all,

how can I install rpms from git.centos.org? I'd like to install and test
the realtime-kernel.

It seems to me that https://wiki.centos.org/Sources only means to build
srpms.

What I ned is an rt-kernel with headers for further compiling.

Purpose: I'd like to build a digital audio workstation and for this I'd
like to try out CentOS with the following packages first:
- kernel-rt
- ardour
- calf-plugins

BTW: Is there an audio SIG?

Thanks in advance
Tim