</i>, a series widely used in classroom and private studio, represents a critical &ldquo;next step&rdquo; for string students. Position playing allows players to extend range beyond the basicsand move into the ranks of intermediate and advanced ensemble groups. The most important positions vary for each instrument, and Whistler wisely introduces the most-used positions first in Volume 1, followed by the next mostimportant in Volume 2. An irreplaceable component...