In the 29th edition of Angkringan, CICP UGM invited Ahmad Yusrifan (Mas Yus) to share his experience researching the phenomenon of sound horeg, which has become a distinctive form of entertainment in village carnivals in East Java and several other regions in Java. Sound horeg refers to a collection of large-scale sound systems with powerful bass whose vibrations can be felt physically by the body and the surrounding environment.