WGBH has hosted many string quartets in its performance studio. Hear three of the best, playing music by Joseph Haydn. Two hundred years ago — May 31, 1809, to be exact — Joseph Haydn died at age 76.

Between 1757 and 1799, Franz Joseph Haydn completed 67 string quartets. Every one, even the lightweight early divertimentos, has something in it to enjoy. Many of the last quartets are masterpieces.

A disc of 21 mazurkas, far from concentrating on too narrow a spectrum, only goes to show the variety of emotion and poetic expression that Chopin embodied in these sublime pieces. That impression is ...

Under recent directorships, it and other “heritage” art-form programs frequently have felt like tick-box afterthoughts to schedules dominated by ostensibly contemporary, genre-­shattering items.

(6) String Quartets, Movements: No. 4 in B flat Chiaroscuro Quartet (6) String Quartets, Movements: No. 5 in G, 'How do you do?' Chiaroscuro Quartet (6) String Quartets, Movements: No. 6 in D ...

(6) String Quartets, 'Erdödy', Movements: No. 1 in G Chiaroscuro (6) String Quartets, 'Erdödy', Movements: No. 2 in D minor, 'Fifths' Chiaroscuro (6) String Quartets, 'Erdödy', Movements: No. 3 in C, ...