Alive Drumming grants license to remix its tracks. That is, you can take the Song Rhythm Tracks audio, mix with your own content, and sell that mix as your own work without paying a fee to Alive Drumming.
Alive Drumming prohibits resale or redistribution of its un-mixed, original Song Rhythm Tracks. You cannot sell or give away these tracks unless you mix them into a new creative piece of work.
Alive Drumming appreciates artistic attribution but does not require attribution in your remixed works. You do not need to attribute Alive Drumming for the rhythm track in your remixed original work but if you wish to please add, “rhythm track supplied by Alive Drumming (c)” and include a reference to this website.