In a relatively modern context, works of Rabindranath Tagore and Nazrul Islam form a major part of the cultural heritage of Bangladesh. Several musical instruments, some of them indigenous, are used in Bangladesh. Major musical instruments used are the bamboo flute ("Bashi"), drums ("tabla", "dhol"), a single-stringed instrument named "ektara", a four-stringed instrument called "dotara", a pair of metal bowls, used for rhythm effects, called "mandira". Currently, musical instruments of western origin, like guitars, drums, and the saxophone are used, sometimes along with traditional instruments (Muajj). Recently, Western influences have given rise to quality rock bands, particularly in urban centers like Dhaka.