Martin and Shan Graebe sing to students at an impromptu Acoustics course seminar at Pécs University Faculty of Art and Music
Martin and Shan test the acoustics of the Liszt Hall at the Faculty of Art and Music
Martin and Shan Graebe sing to students at an impromptu Acoustics course seminar at Pécs University Faculty of Art and Music
Martin and Shan test the acoustics of the Liszt Hall at the Faculty of Art and Music