mixer.app ; how do i use it after installing it with aptitude?

[Paul E Condon <pecondon@mesanetworks.net>]

I found a .deb package, named 'mixer.app' by accident in aptitude
interactive mode. My current sound mixer is the one installed by xfce,
which uses much to much area on my display screen for my taste. (about
20%) 

I think I need to learn how to create a 'launcher', which is something
I have never done. Where can I find instructions for creating a
launcher specific to xfce?

I've already found a way of mouse clicking that pops up a small window
with small text entry boxes in it, but I have no idea what to type
into the boxes. And, for all I know, my mouse clicking is not at all
any part of getting the mixer.app .deb to play nicely with xfce.

Also, mixer.app may not be the best solution for my screen real estate
problem. Alternatives for a smaller area mixer graphic will be happily
entertained.

TIA
-- 
Paul E Condon           
pecondon@mesanetworks.net