Between those seven years 1993 - 2000, Haddad studied score-reading, orchestration and conducting under maestro Ahmed El-Saedi, counterpoint and music analysis under professor Awatef Abdel Karim and composition basics under Ahmad Abdulla, Mona Ghoneim and Rageh Dawood.

In 1997, while Haddad was enrolled in his bachelor program in Cairo, he also participated in Bahrain in a musical workshop for Oud under the supervision of the Iraqi musician Naseer Shamma.

And continued composing the music and sound effects for a number of plays afterward including, “Wedding Night” in 2001, “Adhari” and “Life Is Not Very Serious in Its Bits and Pieces” in 2003, “At Midnight” in 2004 and “News of the Mad Lover” in 2005.

Also, in 2005, while he was in a visit to Scotland, he composed music for the experimental animation “Emotion in Motion”- project by Hiba Aboulhosn, Edinburgh College of Art.

One of the most important musicians with whom he worked continuously is Ala Ghawas, where he participated in a number of his albums as a string arranger, pianist and oud player.

(Participated as a composer and piano player, with a group of musicians, in a concert entitled “For her”, dedicated to Al Aqsa Second Intifada) - Gulf air Club.

(Participated in the United Nations International Day in Support of Torture Victims, playing the Oud, accompanied by the poem “Martyr” of Qassim Haddad) - Al Oroba Club.

(Collaborated with the Bahraini poet Ali Abdulla Khalifa in the poetry recital Washaej, by composing the melody for some of his poems) - Isa cultural center.

(Played the piano as an accompanist to the German poet Ilija Trojanow in a poetry recital, Foreign Languages Department) - University of Bahrain.

(Played the piano as an accompanist to the poet Qassim Haddad in a poetry recital, “The Sorceress Woke Me Up” - Abdulla Al Zayed house for Bahrain Press Heritage) – Muharraq.

(Performed live piano improvisations in the opening for the first exhibition of the Bahraini sculptor Khalid Farhan “Dream Layers”, inspired by the Sculptures - Abdulla Al Zayed house for Bahrain Press Heritage) - Muharraq.

(Played the Arabic Lute as an accompanist to the Bahraini poet Qassim Haddad in a poetry recital - Sheikh Ibrahim Bin Mohammed Al-Khalifa Center for Culture and Research) - Muharraq.