Unfortunately, opensong only available for 32 bit:
http://sourceforge.net/forum/forum.php?thread_id=3264270&forum_id=373379
At this moment it is not possible to create a 64bit version with the current development environment. It is however no problem to run OpenSong on a 64bit Windows or MacOS machine. Linux is more of a problem.
So, if I include it in ubuntu-ce, it would make ubuntu-ce only available for 32bit. Any opinion?
DK