And there's certainly a lot to chose from. In the classical period alone, there are quartets by Haydn (68), Mozart (23), and Beethoven (16), most of which are considered masterworks
The romantic period begins with Schubert (15), then moves to Mendelssohn (6), Spohr (36) and Brahms (3).
20th and 21st century composers have also contributed to the genre. Ravel, Debussy, and Faure wrote one each (but they're still in the repertoire). Shostakovitch wrote 15. And then there's Elliot Carter (5), Philip Glass (5) and Benjamin Britten (3).
And many others besides: Bartok, Schumann, Puccini, Verdi, Wolf, Sibelius... and many many others, both major and minor.
You can also explore recordings by the great string quartets, even delve into historic recordings.
There's a lot out there to listen to, a lot for you to discover from others sharing their tweets, and a lot for you to bring to other people's attention with your tweets.
Just remember to include #SQaDay as the hashtag. That way everyone interested will know what your listening to (and most likely be impressed by your good taste).
