Rap is a musical manifestation of da hip hop lifestyle. cos of its musical nature it has certain forms,dats where ryming,wordplay "n" others come in. Anything dat lacks these basic laws is considered garbage! Rap is a reflection of d hip hop mind, either its fuckin chicks or oppression,thru these above set down laws. Although to be quite innovative one must add to this laws a certain "sumthing" dat makes the rapper unique.