The Cairo Opera House Quartet will perform Ludwig van Beethoven's  String Quartet No. 4 in C minor and Pyotr Ilyich Tchaikovsky's  String Quartet No. 1 in D major, Opus 11 on next Monday.The Quartet was founded in 1991 by Osman El-Mahdy, who is also the ensemble's first violin.El-Mahdy studied violin in Alexandria and then Cairo Conservatoires and chamber music at Geneva Conservatoire. He was a member of the Orchestre de Chambre de Genève and the Orchestre de Chambre du Jura (1985 - 1989), then Cairo Symphony Orchestra from (1989 - 1993), and finally Concertmaster of the Cairo Opera Orchestra from (1994 - 2005).
He performed with numerous ensembles in Egypt as well as in Russia, Syria, the Emirates, Japan, France, and Switzerland. El-Mahdy was a professor of violin and chamber music at the Cairo Conservatory until 2005. From 1993 onwards, he has been a professor of violin at the Talent Development Center of Cairo Opera House , where he teaches Suzuki method.
The Cairo Opera House Quartet also includes Yasser Ghoneim on violin, Oleg Oneshchag on viola and Mohamed Salah on cello.