Detailed description of basic systems in English, French, German, and Spanish. Most exercises are written as duets, trios, or quartets so the teacher or other students may play along. The alternate parts focus on the same technique, but are written starting on a different pitch, or as the inversion of the top part. Variety of short, fast, chromatic exercises which are slurred, tongued (single,double and triple tonguing), or are combinations of changing articulations. Wide interval slurring at slow and fast tempos are also included. 24 pages.