issue

--
--  |     _)       
--   _ \  |    _ \ 
-- _.__/ _| \___/ 
--                


function init()
  notes = {}
  selected = {}
  -- build a scale, clear selected notes
  for m = 1,4 do
    notes[m] = {}
    selected[m] = {}
  end
  light = 0
  number = 3
end

function redraw()
  screen.clear()
  screen.level(10)
    for m = 1,4 do
    for n = 1,4 do
      screen.circle(m*8,n*8,3)
      l = 2
      if selected[m][n] == 1 then
        l = l + 5 + light
      end
      screen.level(l)
      screen.fill()
      screen.stroke()
    end
  end
    screen.move(45,27)
    screen.font_size(35)
    screen.text(number)
    screen.font_size(8)
    screen.move(38,35)
    screen.text("Max Rnd")
  screen.update()
end

function key(n,z)
  if n == 2 and z == 1 then
    -- clear selected
    for x=1,4 do
      for y=1,4 do
        selected[x][y] = 0
      end
    end
    -- choose new random notes
    for i=1,number do
      selected[math.random(4)][math.random(4)] = 1
    end
  elseif n == 3 then
    -- find notes to play
    if z == 1 then
      for x=1,4 do
        for y=1,4 do
          if selected[x][y] == 1 then
          end
        end
      end
      light = 7
    else
      light = 0
      number = math.random(16)
        -- clear selected
        for x=1,4 do
        for y=1,4 do
        selected[x][y] = 0
         end
       end
    -- choose new random notes
      for i=1,number do
      selected[math.random(4)][math.random(4)] = 1
      end
    end
  end
  redraw()
end

function enc(n,d)
  if n==3 then
    -- clamp number of notes (random select) from 1 to 16
    number = math.min(16,(math.max(number + d,1)))
  end
  redraw()
end