This dataset accompanies the paper: C. C. S. Liem. Crowdsourcing Audience Perspectives on Classical Music. In: Proceedings of the International Workshop on Multimedia Artworks Analysis (MMArt 2016) at ICME 2016, Seattle, USA, July 2016. The dataset consists of crowdsourced timeline comments on an audiovisually recorded performance of Beethoven's Eroica symphony by the Royal Concertgebouw Orchestra.