Rain Sequence — an intuitive formula of prime numbers, of fate and its irrevocable movement — increasing failure, descent and dissolution —

The disaster itself occurred on 21^st October 1966 at about 9:15 am.  The day was calm and sunny at 7:30 am, when the team of men responsible for the dumping of mine waste on Tip 7 arrived for work.  At the top they found the tip had subsided by about three metres.  (The Landslide Blog)

Here is a demo sample of 7 pianos:

To contribute to the recording of Aberfan, please go to www.tinyurl.com/FundAberfan.

Photo IC Rapoport, 1966