The interpretation of jazz style is crucial to the element of swing in any jazz ensemble performance. Today, many charts for both large and small instrumental and vocal jazz ensembles are well marked with articulations and expression markings. However, in some cases, there is nothing to guide the musician. This article addresses some common jazz articulations and style situations and provides a set of guidelines to help instructors and students decide how to treat notes and rhythms in swing style. Use of these concepts can help an ensemble sound more authentic and can help students better understand jazz articulations and styles. (Contains 20 figures and 9 notes.)