Is there a demo of RiffWorks?
From Guide
RiffWorks T4 is a new, free edition of RiffWorks guitar recording software that includes looped recording, automatic track creation, InstantDrummer, all 7 effects, song posting, online collaboration, a new “Quick Start” tutorial, and more.
The main differences between RiffWorks T4 and RiffWorks Standard is that RiffWorks T4 only records 4 layers per riff plus drums, while RiffWorks Standard records 24 layers per riff plus drums, and includes 9 extra InstantDrummer Sessions, a REX player, ReWire supprt, Export, and Sonoma 7 VST. RiffWorks T4 and RiffWorks Standard Feature Comparison Chart
Anyone with the RiffWorks Demo (discontinued) should download RiffWorks T4 free edition as it includes bug fixes and additional features, like song posting and online collaboration.
Buy InstantDrummer sessions to use with RiffWorks T4, and they will work with RiffWorks Standard if you choose to purchase it later.


