Purandara Dasa was a wealthy merchant of gold, silver and other miscellaneous jewellery from Karnataka, who gave away all his material riches to become a Haridasa (literally meaning a servant of Lord Hari or Lord Krishna), a devotional singer who made the difficult Sanskrit tenets of Srimad Bhagavatam available to everyone in simple and melodious songs. He was one of the most important music scholars of medieval India. He formulated the basic lessons of teaching Carnatic music by structuring graded exercises known as Svaravalis and Alankaras, and at the same time, he introduced the raga Mayamalavagowla as the first scale to be learnt by beginners in the field - a practice that is still followed today. He also composed Gitas (simple songs) for novice students.