Plovdiv once-bright greens and blues. Torah scrolls are kept in the gilded Aron-ha-Kodesh. The Plovdiv Drama Theatre is a successor of the first professional theatre group in Bulgaria founded in 1881. The Plovdiv Puppet Theatre, founded in 1948, remains one of the leading institutions in this genre. The Plovdiv Opera was established in 1953. Another pillar of Plovdiv's culture is the Philharmonic, founded in 1945. Soloists such as Dmitri Shostakovich, Sviatoslav Richter, Mstislav Rostropovich, Yuri Boukov, and Mincho Minchev have worked with the Plovdiv Philharmonic. The orchestra has toured in almost all of the European countries. The Trakiya Folklore Ensemble, founded
Plovdiv is the second or the third-largest cosmopolitan city inhabited by Bulgarians, after Sofia and possibly Varna. According to the 2001 census, out of a population of 338,224 inhabitants, the Bulgarians numbered 302,858 (90%). Stolipinovo in Plovdiv is the largest Roma neighbourhood in the Balkans, having a population of around 20,000 alone; further Roma ghettos are Hadji Hassan Mahala and Sheker Mahala. Therefore, the census number is a deflation of the number of Roma people, and they are most likely the second-largest group after the Bulgarians, most of all because the Muslim Roma in Plovdiv claim to be of Turkish ethnicity