Watch the Timing is Everything online guitar lesson by Jennifer Day Morrison from Get Your Song Write
In this video lesson, you'll learn the importance of beats, bars, and patterns used in composition.
Professional songwriters use patterns much like authors use chapters in a story. The difference is a composer is confined to melody/rhythm and conventional patterns that are made up of bars. Professional songwriters often conform to these patterns for the sake of familiarity and consistency. Get your timing write!