As part of the Treaty of Trianon Museum the visitors enter a middle class enterieur from the beginning of the century. In addition to furniture and related items, relics in connection with the irredentist musical movement are on display . Beside the wind and percussion instruments, a few contemporary music rarities are also to be seen. The music sheets with graphic elements on them provide spectacular images for us about what the trendy graphic style of the time was in posters which heralded music and theatrical shows.

A highlighted element of the exhibition is a series of photos, which captured moments of a traditional Hungarian military band in the 20th century. The photos authentically reveal how a Hungarian military band was compiled at the time, what their performances were like and how they lived their daily lives.