He has graced numerous prestigious venues such as the Cambridge Academy, Lincoln Jazz Theater, Symphony Space, Duke University, the World Culture Museum, and the Kennedy Center.

[1] [8] He and his father would continue to perform together until the latter's death in 1997, including a duet titled Duo de Oud which received high acclaim.

In an interview with Al Jadid, he discussed how he believed that only certain elements of Western music could fit with Arabic, and that introducing more did more harm than good.

"[7] Around the same time, Omar had stated in an interview with Laha Magazine that critics who accused him of distorting Arabic music had gone on to imitate him, confirming that he developed his own unique style of oud playing.

[13] The following year, he performed a concert at the Royal Opera House in Muscat, Oman alongside Iraqi American trumpeter Amir ElSaffar.

[15] In 2023, Omar took part in an Iraqi Folklore concert at the Prague Conservatory with Iraq's Ambassador to the Czech Republic, Falah Abdulhasan Abdulsada, present at the event.

In 2009, he held a charity performance in Amman, Jordan dedicated to the Gaza Strip, and played a number of melodies in memoriam of those who faced rights violations.

He was critical about the comments that were directed towards him, stating that many artists from all around the world were coming to participate and that he was against Zionism, yet the concert had nothing to do with the politics of West Asia and a potential normalization of relations with Israel.