What is "saifo"

Saifo ( Hajji Saifo, 1942?–1998) was an Afghan folkloric singer. He is remembered for his controversial and provocative lyrics, much of it he improvised as he sang. He believed the power of verbal freedom (and spontaneity) should rule over both studio recording session and live performances. As such, he loosely based his songs on beforehand arranged lyrics. Sometimes this would result in songs altogether different in meaning than what was written initially. His recorded songs do reflect the un-meditated nature of his work.