This song is one of the most famous folk songs of Southern Iran and I’ve heard different versions of it, performed with other singers, but the version that Rastak Band performs is very joyful, refreshing, and colorful!

I really admire Rastak's efforts to create originality and attention to local features in this song.
Towards the end of the song, we even see some musical instruments that are unusual even in traditional music, and surely the members of Rastak have found these musical instruments through research.

They even included Kel cheering of women in their music (“ululation” which is the sound women make in weddings and joyous events as a sign of happiness), and is somewhat unusual but has been necessary to preserve the authenticity of this old folk song.
Rastak Band
Song: Ey Yar (Oh! Darling)
Lyrics
(Oh! Darling) (Oh! Darling) run towards me
Dear darling! Run to me right now!
O you who have a gazelle neck!
I am in love with you
Your place is empty, run now

I’ll wait for my beloved
My heart is restless
Behind the columns
My heart is bleeding
Yambu Sala (Greeting To Goodness)
Behind Rumi's garden (a place where people used to get water),
next to a water pipe
They gave me your home address,
I came and you are still asleep

My friend has come from a trip, and I am unaware
How hot is the port air?
Its climate is hotter than the height of a Kaper (a kind of desert tree in southern Iran)
My darling!
Cope with the hot weather of the port!
If you wouldn’t!
I will send you to Shiraz (a city with good weather in the center of Iran)