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.
-- package ubuntustudio-audio 0.28 failed to install/upgrade: dependency problems - leaving unconfigured https://bugs.launchpad.net/bugs/241085 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
