During the Sangam Age (500 BC to 200 AD), there are enormous amounts of Tamil literature produced, most of which are available even today. They are mostly in Verse (Seyyul) form and concern with the rules of righteous living (Aram). There are, however many references of well developed music and musical instruments, even at that stage. The popular “Kuzhal Inidhu Yazh Inidhu” verse of Thiruvalluvar, besides establishing the popular use of the Flute and Veena (Yazh), also indicates that the Flute is an older instrument and the Yazh came later. There are also references to non-musical drums (Parai) that were in use at that time.