The context is as follows:
A great Gilaki folk singer & song writer by the name of
Hassan Khoshdel from Bandar Anzali (passed away a few years ago) wrote and performed " Zangaloo " at Koolak Hotel in Bandar Anzali. it's a song about a Bandar Anzali fisherman. Zia Atabay contacted Khoshdel and invited him to work with Zia on this song in Tehran studio.and that is how Zia's Zangaloo record was made and commercialised.
Hassan Khoshdel was a fantastic Gilaki folk singer and song writer (played Accordion & Piano) whose songs are loved and sang in Gilan (much like Ahmad Ashoorpoor) and specially revered in Bandar Anzali. he wrote and performed a fantastic song for Malavan Bandar Anzali FC on the occasion of the famous Malavan vs Taj game in Anzali in the early 1350's.that song was performed live at Anzali stadium with Malavan fans singing along. Jafar Namdar (RIP) who was the referee at that Malavan vs Taj game said that was one of the most beautiful and memorable occasions of his sports life.
Zangaloo , created and first performed by Hassan Khoshdel , later on recorded and performed by Zia Atabay.