Mirek Mardosz was born on January 31, 1960 in Wloclawek, Poland.
The 1960’s were times of the Beatles fascination, so when Mirek and his brother were learning how to play the guitar, they played the Beatles. A first music band that Mirek played in was Protestsong, started with his friends from Technical College. The music popular in 1970’s had a great influence and impact on Mirek’s musical life. He was fascinated with Pink Floyd, Led Zeppelin, Emerson, Lake and Palmer, and Procol Harum.

At the beginning of 1980’s Mirek changed electric guitar into bass guitar. Back then, he was playing with the band called MAK, which won first place prizes in many contests.
In 1986 Mirek decided to change the music instruments again, and started playing electric guitar again in the band called An Emergency Exit.

At the end of 1990’s, Mirek and his two friends, Leszek Wieclawski and Wojtek Sobolewski, started a band called Hologram, which was playing an electronic music. The band recorded two albums: The Seventh Chamber of Heaven and Ad Infinitum. The first album was presented on the radio in Jerzy Kordowicz’s Toptlen programme, and the song 1912 reached 8th place on the music chart.

The band members were working together by 2002, recording few unpublished music projects.
In 2002 Mirek Mardosz recorded an album in his own studio called Mass Media (Mastering by Krzysztof Maszota).

Since 2002 Mirek Mardosz has been living in Chicago, USA. Occasionally performs in local clubs with his Accoustic Show. He has been planning his own music studio and looking for new sounds. Fascinated with the sound of Godin guitars, Mirek has been recording a new album with acoustic music and electric rock.

1960 – date of birth
1968 – first accoustic guitar made by Defil
1972 - first handmade electric guitar
1974 – first group 'Protessong' in Electrical School in Wloclawek, Poland
Members:
Miroslaw Wielicki – bass guitar, guitar, vocals
Grzegorz Pawlowski – guitar, vocals 
Wlodzimierz Opalinski – drums 
Mirek Mardosz – guitar, vocals
1978 – group 'Apogeum' - poetry set to music
Members: 
Piotr Slawkowski
Mirek Mardosz
1983 – rock group 'Grupa Mak'
Members:
Andrzej Girczyc – guitar
Marek Jaspinski – drums 
Mirek Mardosz – bass guitar
1986 – group ' Wyjscie Awaryjne' ('Emergency Exit')
Members:
Grzegorz Benedykcinski – vocals 
Piotr Slawkowski – guitar 
Stanislaw Marszalek – guitar
Andrzej Kozbial – bass guitar 
Pawel Bretes – drums
Mirek Mardosz – guitar
1999 – Group 'Hologram'
Members:
Wojtek Sobolewski – synthesizers 
Leszek Wieclawski – synthesizers and guitars
Mirek Mardosz – synthesizers and guitars
“Seventh Chamber of Heaven” - the first album by 'Hologram'. Production and mastering by Piotr Matuszkiewicz.
Debut on the Third Program of Polish Radio in Jerzy Kordowicz's 'TOPTLEN” radio program. 
The track '1912' composed by Mirek Mardosz, amongst 43 artists and 200 tracks, reached 8th place on the playlist.
2000 – own professional recording studio
2001 – Second album by 'Hologram'. 'Ad Infinitum' composed by Mirek Mardosz. Mastering by Piotr Matuszkiewicz
2001 – Premiere of the second album “Ad Infinitum' in Third Program of Polish Radio
2002 – Composition and production of first solo album 'Mass media'. Mastering by Krzysztof Maszota
2005 – Recording studio in the US
2006 – Joint project with Michal Cwynar 'Requiem for Mozart'
2006 – Movie projects, scenarios and music – 'Talk', ' Pseudonym: Grenade', 'Train'
2007 – 'Accoustic Show' - Solo concerts in Chicago
2007 – New projects on solo guitar and orchestra
2007 – Working on a new accoustic album – solo and with vocal singer