I was able to fix this by uninstalling both timidity packages and ubuntustudio-audio, and then installing ubuntustudio-audio again. Note that this error was caused when converting the 64 bit version of Ubuntu Desktop to Ubuntu Studio 64 bit.
I was able to fix this by uninstalling both timidity packages and ubuntustudio-audio, and then installing ubuntustudio-audio again. Note that this error was caused when converting the 64 bit version of Ubuntu Desktop to Ubuntu Studio 64 bit.