Kahtmayan started in January 2003, although much of the music was written by Homayoon Majdzadeh (guitarist) before that time. Official band activity began with the addition of Ardavan Anzabipour (Bassist), khaled Sanad zadeh (Drummer), and Ali Khodadoost (Keyboardist).

Writing for "Virtual Existence" was completed in fall 2003. The band decided to play some live shows before recording the ablum. So Kahtmayan played 6 shows over a week in January 2004. In mid-winter 2004, Vanik Vartanian replaced khaled Sanad zadeh as drummer, and Kahtmayan started to record.

Kahtmayan's initial sound consisted of blending heavy metal with traditional Iranian folk music. The focus in recent years has been to write and compose instrumental songs. The first album (Virtual Existence) is in the vein of progressive metal performed with guitar, bass, keyboard, and drums. In creation of this album, we have used melodic elements and various harmonic textures and rhythms. Virtual Existence consists of 9 tracks and was written by Homayoon Majdzadeh in 2002. The album is scheduled for release in feb 2009.

Since most metal fans in Iran are into Thrash Metal, Kahtmayan decided to record the "EXIR" album. They changed the line up for this album to achieve a more thrash sound. They replaced the keyboardist with a second guitarist, Ali Azhari, in April 2005. "EXIR" was released on July 2005 by Ava Khorshid Company.

After recording is completed on "Virtual Existence", Kahtmayan plans to broaden their musical direction by adding vocals to their lineup! Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.