This slideshow introduces some of the basic concepts involved in musical structure or form. This slideshow does not get into the subject of specific large scale forms, such as sonata allegro or theme and variations, because we won’t encounter those structures until we study the Classical era. These foundational concepts will set you up with the basics you need for the first portion of the semester.

http://www.slideshare.net/CandelaContent/form-49128943