#Piano investigating space filling patterns using C. Start,
  inner ring, outer ring, middle, end. 8 3 6 2 7 5 4 1. just
  playing. #Efficiency
  [vine id = "hHbMdQJrrIu"]
  #Piano investigating space filling patterns using C. Start,
  inner ring, outer ring, middle, end. 8 3 6 2 7 5 4 1. just
  playing. #Efficiency