The formal thinking behind the piece is based on the interaction between individually determined periodic rhythms and a cumulative polyrhythmic overall structure. Although the overall rhythmic structure is on an indeterminate level intermediate - the result of adding individual periods of different length is at any given time random -, it is again determinate on the higher level of the temporal development of the overall from. This overall form consists of the three phases: uniformity - gradual structuring - and uniformity, whereby uniformity in the initial phase arises form the collective blur of the individual periods, and in the final phase is a results of the periodicity of the one remaining ticking metronome. There are no distinct divisions between the three phases: the rhythmical process leads smoothly and gradually from one phase into the next. This appears to be a continuous process but consists of individual, discontinuous moments as each metronome stop suddenly. In the sparsely instrumented final phase with only a few metronomes left ticking, this discontinuity becomes audible, most obviously when the last metronome stops.- György Ligeti Rental metronomes are available from:Wittner GmbH, IsnyExport Department, Ms Angelika EndeleTel. ++49 (0)7562 - 70422Fax. ++49 (0)7562 - 70414wittner@wittner-gmbh.de [1]Links:------[1] mailto:wittner@wittner-gmbh.de?subject=Gy%F6rgy%20Ligeti%20-%20Po%E8me%20Symphonique&body=Sehr%20geehrte%20Damen%20und%20Herren%2C%0A%0ASchott%20Music%20hat%20den%20Kontakt%20zu%20Ihnen%20vermittelt.%20F%FCr%20eine%20Auff%FChrung%20des%20Po%E8me%20Symphonique%20von%20Gy%F6rgy%20Ligeti%20m%F6chte%20ich%20bei%20Ihnen%20100%20Metronome%20ausleihen.%20Bitte%20teilen%20Sie%20mir%20die%20Konditionen%20daf%FCr%20mit.%0A%0AMit%20freundlichen%20Gr%FC%DFen%2C%0A%0A%5BName%5D%0A%5BAddress%5D