#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