mridangam:
    0:4     1       2       3       X       O       X       O       |
0:  k D _ k D _ k D _ k D _ k D _ k D _ k D _ k D _ k t k n o k t k
  > n o k t k n o k t k n o k t k n o k t k n o k t k n o k t k n o
  > k D _ k D _ k D _ k D _ k t k n o k t k n o k t k n o k t k n o
  > k D _ k D _ k t k n o k t k n o k D _ k D _ k t k n o k t k n o
    0:4     1       2       3       X       O       X       O       |
  > k D _ k t k n o k D _ k t k n o k D _ k t k n o k D _ k t k n o