How to install soundfonts in Audacity

To install a soundfont in timidity++, add a line to timidity.cfg:

soundfont /path/to/soundfont.sf2

How to install a better soundfont in timidity

There are several soundfonts out in the wild. This HowTo will use the fluidr3 soundfont which is accessible via the AUR.

Note: It will be assumed that you know how to build packages from the AUR. This excerpt will be very short and barely explained. Too short if you're completely new to it.

As sfarkxtc, a decompressor for soundfonts, is a make dependency of fluidr3, we install it first:

# pacman -S sfarkxtc

After sfarkxtc has been installed, we will be able to build fluidr3 which may take some time.

# wget http://aur.archlinux.org/packages/fluidr3/fluidr3/PKGBUILD
# wget http://aur.archlinux.org/packages/fluidr3/fluidr3/fluidr3.install
# wget http://aur.archlinux.org/packages/fluidr3/fluidr3/license
# makepkg
# pacman -U fluidr3-122501-6.pkg.tar.gz

If fluidr3 has been installed properly, we have to add it's path to the timidity++ configuration file. Just add this line to /etc/timidity++/timidity.cfg:

soundfont /usr/share/soundfonts/fluidr3/FluidR3GM.SF2

Then timidity++ is ready for use.

Source: http://wiki.archlinux.org/index.php/Timidity#How_to_install_a_soundfont