Music:Abdi Behravanfar & Navid Arbabian
Arrangement:Navid Arbabian
Vocals:Abdi Behravanfar
Guitars:Navid Arbabian & Pooyan Ghandi
Drums:Ali Baghfar
bass:Navid Arbabian 
Kamancheh: Master Ali akbar Bahari
Mix & Master: Daryush Daneshnia
Lyrics:Abdi Behravanfar &Unkown poet
Kokheo & Kalakhet album

Zadim be khunash      زدیم به خونش

Amir Si (in Persian: امیر اس آی) is an independent music producer and was born in 2004. He is a multi-genre composer and producer such as Electronic, EDM, pop, hip-hop, Rock. , Orchestral and Ambient genres and He is also the producer of various remixes.

He started composing in 2021 and officially released his first song "Winter" in 2022, his first foray into the music world. Then in 2024 he released his first instrumental and multi-genre album (Lost Memories). In this album, witness the presence of Iranian instruments There are genres (rock/metal/trap/hip-hop/Arabic folk/jazz/orchestral and cinematic) which had never happened before with this quality. In the second track "This is Our History" The Iranian instrument "Santur" was used in rock music for the first time, which had not happened in any rock or metal music before this album.

In his works, Amir Si usually uses the musical combination of different genres and cultures, such as traditional Iranian and Middle Eastern instruments with Western culture, and his attempt is to create music that has not been made before and In general, he tries to be able to have new and artistic productions in most music styles.

He is singer songwriter,  Guitarist , Harmonica  and  Dotar player.He founded Blues rock band ( MUD) in 2003 in Iran. composed music for 3 short,3  feature movie and 4 plays. also released 7 Albums. He moved London 2011.  collaborate with many blues and jazz artists in London .also  He played Electric Guitar and Slide guitar for a British  folk Rock band for 3 years .they had hundreds gigs and  festivals around the Uk.and He play Blues harmonica for Duet Blues ,they  had more than 300 gigs at Blues clubs and pubs in London in  last 2 years.