Vishnudigambar and Aakarmatrik Swaralipi are two different systems of notation used to represent the swaras (notes) of Hindustani classical music.
Vishnudigambar is the older of the two systems, dating back to the 17th century. It is based on the use of symbols to represent the swaras. Each symbol is a combination of a geometric shape and a dot. The shape represents the octave of the swara, and the dot represents the type of swara.
Aakarmatrik Swaralipi is a more recent system, developed in the 19th century. It is based on the use of numbers to represent the swaras. Each swara is assigned a number from 1 to 7, with 1 representing sa, 2 representing ri, and so on.
Both systems have their own advantages and disadvantages. Vishnudigambar is more expressive, allowing for a wider range of nuances and ornamentation. However, it can be more difficult to learn and use. Aakarmatrik Swaralipi is simpler and easier to learn, but it can be less expressive.
Vishnudigambar is still used by some musicians today, but it is more common to see Aakarmatrik Swaralipi used in notations of Hindustani classical music.
