RS_SON.ARC/ZIP
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Sonata #3 for piano solo, by Roger Sessions (1965)
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sequenced by Dave Phillips 1989/1990 using Sequencer Plus ; please advise
  if problems are found, these files have been created in a beta-version
  of Seq+, thank you...
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The files are arranged for "Jukebox" performance in Seq+, I've added some timed
  extra measures to the ends of the first two movements.