I was fortunate enough to attend last nights concert at the Barbican - the BBC Symphony Orchestra performing 'Notation' and 'Pli Selon Pli'. Interestingly, both works are considerably old. 'Pi Selon Pli' was written at the end of the 1950s and 'Notation' was completed in piano form just at the end of the Second World War, pre Boulezian serialism. Its present manifestation (for orchestra) begun in 1978 and was then reworked in 1984 and 1987. "Pli Selon Pli" is over 50 years old. In historical terms, it is halfway to being officially recognised as an antique. "Notation" has been 'recycled'; it begun as a piano work and has been transformed into a modern orchestral work. In a modern terms, we would refer to this kind of recycling as something which has been "upcycled"; that's where recycled... ... old products are given more value, not less. (- Reiner Pilz) Imagine an item of furniture, at the en