I have a newer computer since buying/downloading PrintMusic 2014, and I would love to continue using it without having to buy it again.  It's also worth mentioning that I am totally happy with what I was able to do on that software, and don't need an upgrade for the work I am doing.  

Can I download it to another computer without having to buy it again?  Even if I have to delete it from the old computer?

Thanks for your help.  

Old laptop was a MacBook Pro from around 2009.... newer computer is a mid 2011 iMac / Mac OS Sierra 10.12.