For anyone using Pianobar and upgrading to Ubuntu Maverick, Pianobar would no longer run and would give the error:
pianobar: error while loading shared libraries:
libao.so.2: cannot open shared object file: No such file or directory
The solution I’ve found is to make sure you have libao-dev installed and then run:
sudo ln -s /usr/lib/libao.so{.4.0.0,.2}