The history of political songs in Iran, the changes, developments, and evolution of their poems, songs, and music from the Qajar period to the Islamic Revolution have been examined and introduced in the documentary "Shouted Singing". This documentary looks at the history of ballads, social-protest songs, and revolutionary hymns in Iran and the movement towards the revolutionary wave in music that reached its peak in 1957. In the documentary "Shouted Singing" we see Naser al-Din Shah Qajar's actions in the evolution and development of Iranian music. These actions often take place after his trips abroad, which seem to have been influenced by his observations of other countries. The result of this era was the creation of works such as "Hello King" composed by the French Monsieur Lumer (military musicians sent to Iran during the Qajar period). During this period, works with political themes and nature were not made. Further, in this documentary, we can see parallels to the political changes and developments in Iran, especially after the death of Mozaffar ad-Din Shah and the establishment of Mohammad Ali Shah, and the changes that happened in the themes of songs and music. Two of the leaders of these music changes are "Aref Qazvini" and " Malek osh-Sho'ara Bahar", and this documentary talks about their influence on music. In this documentary, the era after the establishment of radio and the effects of this media as well as political and social developments on music until the revolution of 1957 are depicted.
Katayoun Jahangiri, Documentary and Experimental Cinema Development Center