VOICED: Marathon concert marks Chopin's birthday

The transcript describes a weeklong concert in Warsaw celebrating 200 years since the birth of Frederic Chopin. The event features 171 hours of nonstop music, with performances by over 250 musicians and singers. A first-year student surprises the audience by inaugurating the event. The concert is open to anyone who knows a Chopin melody, emphasizing the deep connection between Chopin's music and Polish culture. The concert aims to link Chopin's two birth dates, February 22nd and March 1st. Audience members express their enthusiasm and plan to return daily, while Chopin's nocturnes play into the night.

What was the reaction of the spectators after three hours of music?

What type of music is mentioned as lulling spectators to sleep?