Sorry, I thought you knew. An rpm is the typical format for a Fedora package. In the same way that one takes source code (a tar.gz file) and creates a .deb binary for Ubuntu, one creates an rpm for Fedora.
You're better off using rpms if available, because that way, the system's database can keep track of the package.
It looks as if both Mandriva and SuSE have a version in rpms. (Just did a quick google for freebirth rpm), but the only mention of a Fedora package that I see is one for a drum machine, rather than a bass synthesizer.
In that case, you have a couple of options. You can use alien on Ubuntu to try to create the rpm--I have about 80 percent success with that method. You look in /var/cache/apt/archive (I think), and find a freebirth.deb package. Then, you install alien and run sudo alien -r freebirth-<restofthepackagename>.deb
That should create an rpm. Copy the rpm to your Fedora installation and run
yum localinstall --nogpgcheck freebirth-<whatever>.rpm
This might or might not work. Sometimes, the dependencies can't be met, sometimes the problem is just because Fedora and Debian, from which came Ubuntu, name packages and/or libraries differently.
The other option is to download the source code and install it. This is sometimes easy. I have an old page on how to do that at http://home.roadrunner.com/~computer...u/tarball.html
, if you're unfamiliar with the process.
To do this on Fedora, you have to have at least a few development tools installed. You can install the whole development-tools group, which will cover any compiling you might ever have to do, or take a minimalist approach and see if yum install gcc gcc-c++ make automake kernel-devel is enough. (If you have a PAE kernel, you have to change kernel-devel to kernel-PAE-devel--you can check your kernel by running uname -a--if the result has PAE in it, you have a PAE kernel).
I'm going to sleep shortly, so probably won't respond till tomorrow, but if any of this (or all of it) is unclear--I tend to be unclear when sleepy--please don't hesitate to ask for clarification.