Offered here is RARE Commodore ULTISYNTH 64 musicsoftware issued by Quicksyvia Software for use with the Commodore 64 and 128 computers. Software was tested and loaded properly as shown. This is used and there is some writing in the last page of the manual. Although it loaded for me, it is sold \"as is\" as there are too many factors to prevent it from loading on your system; ie worn datasette belt, dirty datasette heads, RAM issues with your 64, etc. I ship worldwide. Please check out my other listings. Buyer pays shipping. Good Luck!