Borusan Istanbul Philharmonic Orchestra founded by enlarging the Borusan Chamber Orchestra in 1999. Prof. Gürer Aykal is the permanent music director and conductor of the orchestra. Gürer Aykal (born 1942 is a Turkish conductor and Adjunct Professor at Bilkent University. Conducting is the act of directing a Musical performance by way of visible gestures An orchestra is an instrumental ensemble, usually fairly large with string brass woodwind sections and possibly a percussion section as well This orchestra is funded by Borusan Holding.