When the musical mastermind composed his 14th string quartet in G major (K. 387) in 1782, he needed four people to perform it. Now, 250 years later, it still requires exactly four.28 If you’re looking to up your violin’s production capacity, the most you can do is play a little faster. Put another way: Some things in life, like music, resist all attempts at greater efficiency. While we can produce coffee machines ever faster and more cheaply, a violinist can’t pick up the pace without spoiling the tune.

