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The five-parted piece (partly based on older works, among other things from
cycle "Forth Series") in some sense marks a transition from the more
minimalistic phase to a period, in which the music got a more melodic and
lyrical character. After the first climax with "Music in Twelve Parts",
something like an "Art of the Fugue" of the minimal music (Philip Glass always
disapproved the term minimal music, but it is nevertheless accepted by many of
his listeners), there followed with "Einstein on the Beach" one of the
outstanding pieces in Glass' works. And on the way from "Einstein" to
"Satyagraha" "Dance" was composed.
Three parts of it are written for the Philip Glass Ensemble, two for organ
solo. The ensemble-pieces anticipate many of the main characteristics of
"Koyaanisqatsi" and "Glassworks", but contain still some marks of "Music in
Twelve Parts": The many arpeggios and good-sounding triads look ahead, the
number of the repetitions of some passages and the duration of the whole parts
show their relationship to earlier works. High speed and volume are often
similar to parts of "Einstein" (e.g. act 2, scene 1), but the partial sharp
harmony in "Einstein" disappears in favor of more consonant sounds.
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The parts 2 and 4 for organ solo form a bit an integrated whole for
themselves. Especially in "Dance 4" the principle of addition an subtraction
take effect. The work is made of two alternating parts, of which the one, with
whom the piece starts, consists only of two harmonies. During the piece there
is no change of the number of harmonies but of the number of repetitions or,
above all, a change of the rhythmical division by variation of the numbers of
beats per bar from 2 to 5, combined with triols and other variations. Between
these recurring harmonies there is always another part, consisting of up to
six harmonies, which also appear in different rhythmical divisions.
In the whole piece the complexity is growing continuously, so that at the
beginning stand easy rhythms and the longer, more complicated ones at the
end.. But also in the middle, some notes can be added or deleted.
"Dance Nos. 1-5" includes the whole spectrum of Glass' composing at the end of
the seventies, showing also to the coming eighties.
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