On September 16, Mahsa Amini died, a week after being violently arrested by Iran's morality police for wearing her veil incorrectly.

Her death sparked a wave of protests in Iran and the world against the country's regime.

Despite the fact that access to social media in Iran has been tightened, several videos, pictures and music have seeped out to the outside world via Instagram in particular, says P3's music journalist Tina Mehrafzoon.

- Because it is so limited what kind of culture you can practice in Iran, it is with life as an effort that artists express their art and spread it, she says.

Artist arrested after song

One of the most widespread Iranian protest songs right now is Baraye, "For" in Swedish.

It is written and performed by artist Shervin Hajipour.

With the help of Twitter posts written under the hashtag "#Mahsaamini", he has composed a song that can now be heard at demonstrations around the world.

After the song's release, BBC Persian reported that Shervin Hajipour had been arrested and that the song had been temporarily taken down from his social media.

The circumstances surrounding the arrest are not completely clear, but according to Tina Mehrafzoon, it is not uncommon for artists to suffer consequences for music with a political message.

- We have seen that historically in Iran, that pop artists were forced into exile and did not dare to release any music or perform because it was a risk to their safety, she says.

Mehrafzoon believes that the protest songs are mainly performed abroad to show their support for Iran.

- Since it seems to be very violent in Iran, there is not really time for singing, but all the more you see that Shervin Hajipour's song plays a big role in the demonstrations outside Iran.

There, people sing along and play the songs in connection with demonstrations.

Persian version of "Bella Ciao"

Another song that has gone viral is sisters Behin and Samin Bolouri's version of "Bella Ciao".

In Persian, they have transformed the old Italian partisan song into a protest song against the regime in Iran.

- It was actually released a year ago but has now gained momentum with the protests in Iran, says Mehrafzoon.

Hear the songs and P3's music journalist Tina Mehrafzoon in the clip above.