Founded by four musicians from the Netherlands, this chamber-music ensemble performs preludes, fugues and more by Johann Sebastian Bach, Dmitri Shostakovich, Maarten van Norden, Astor Piazzolla and other composers. The quartet will perform at 7:30 p.m. Friday, Jan. 11, in the Music Recital Hall on the Southern Oregon University campus, 1250 Siskiyou Blvd. The concert will be preceded by a free discussion and performance at 12:30 p.m. in the music hall. Tickets for Friday’s show cost $30 or $35, $5 for students and Oregon Trail Card holders, and are available at or by calling 541-552-6154.