txtCommentary1=It is no less frivolous to ask why composers settled on a quartet rather than, say, a trio or a quintet. To be sure, {\uldb Viennese}{\v 135870} composers also cultivated these combinations. But they never achieved anything like the popularity accorded the {\uldb string quartet}{\v 154839}. One part of the answer is that four players were needed to play the most complex {\uldb chord}{\v 76801} in the {\uldb harmonic}{\v 84040} arsenal of Viennese {\uldb Classicism}{\v 131766}, the
txtChapterHead=A Rationale
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txtCommentary2=\par\par\par\par\par\par {\uldb dominant seventh chord}{\v 11902}.\par\par\par\par Sure, two performers could create that chord by playing {\uldb double stops}{\v 80453}, but not with the same purity or smooth blend of a quartet.{\fs24\uldb\'80}{\v next}