This article is from the Ballet and Modern Dance FAQ, by Tom Parsons twp@panix.com with numerous contributions by others.
A ballet class is a carefully graded sequence of exercises lasting,
typically, an hour and a half. The work falls into three parts. The first
part consists of stretching and warming-up exercises done with the support
of the barre (see question 2.4). You may spend anywhere from forty minutes
to an hour at the barre. Then you move to the center of the studio to
work without support. The second part of class, called "adage", consists
of slow work in which the emphasis is on sustaining positions and on
balance. The final part of class, allegro, consists of fast work, mostly
combinations (sequences of steps) with the big jumps and turns that make
ballet such an impressive and dazzling sight.
 
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