Prior to version 3, the Demo versions would work indefinitely, however, they were not fully functional. The ability to SAVE was disabled. The Demo or Trial version of Song Surgeon has changed with Version 3. When you request and download the Demo version you will get a fully functional PRO version with no functionality limitations.
This Demo will allow you to use it for four hours of run time. After that it will cease to function. This means that if you install it today and don’t use it until 2 weeks or even 2 months later, it will still function. However, be aware that anytime you have the software open on your computer, the internal clock is counting down and using your four hours of time.