dear sir
according to your request,there are many iranian follloric music sources which are available such as:
the northern folk music:baharmona(composer:A.Mohsenpoor)
                        doodooktika(composer:A.Mohsenpoor)
                        baharaneh(composer:A.MOhsenpoor)
                        shevar (composer:A.Mohsenpoor)
                        mahteti (composer: A.Mohsenpoor)
                        migilan (composer:H.Hamidi)
                        gilelo (composer:H.Hamidi)
                        shabash (composer:H.Hamidi)
if you are in emergency need for your request I can send you the CDs of above sources.
I am the leader of an iranian folk music group. if you need any informations about base of iranian folk music and instruments I can help you, also we can participate in folkloric and traditional music festivals for extending Iranian music.
best regards
Azad Omrani