Claim: The Surabaya dialect of Javanese language is almost always used in the simple and straightforward genre of Ludruk.
Evidence: Ludruk is one of the theatrical genres in East Java. The actors would almost always use the Surabaya dialect of Javanese language, although sometimes there can be occasional guest stars from other areas, such as Jombang, Malang, Madura, Madiun, who each would use their own dialect. Despite the fact that many different dialects are employed in one performance, as a whole, ludruk is a simple and straightforward comedy, making ludruk easily understood by everyone.