industani classical music, we do not notate music for performance purposes because a classical music artist is by definition one who is capable of extemporaneous raga development, and a classical music performance, by definition, is an act of extemporaneous raga development. We do, however, use notation to teach and learn music, and as an aid to memory. When you learn a new raga, you notate a few basic melodic phrases, patterns and simple compositions in that raga so that you can recall them later. n this page, I use a popularly sung composition (socha samajha mana mita piyaravaa in Raag Kedar) to explain three different systems of notation. If you are not familiar with the basic concepts of Hindustani classical music, I strongly recommend that you read my pages on Notes, Scales, and Rhythms.