A number of you requested links to video tutorials or other help related to Reason. Here are some resources:
– Reason Subtractor
Please see the following breakdown of the Subtractor analog synthesizer as discussed in lecture.
– Combinators (advances use)
There are many other resource available of varying quality. I always find it informative to peruse the many disparate ways people are using Reason, a remarkably flexible tool for sound design and composition. Often these reveal hidden techniques and tricks for better sound design.