same process can be continued to obtain all the twelve digits. Note
that the first digit is always 1 to indicate the use of Sa. In the
case of melakartas, Pa is always used and thus, the eighth digit is
always 1. Further, all melakartas use seven and only seven swaras
and thus the notation always contains seven ones and five zeros. In
general, the number of ones in the notation denotes the number of
swaras used in that raga.
The following list gives the number
strings corresponding to the twelve chakrams and the
Pa-Sri.. designations. Note that the Purvangam is represented by
seven digits and the uttarangam by five digits.
The purvangam notations carry a 1 in parenthesis to indicate
that the next swara is Sa, which is always present.