A team of researchers with members from the U.K. and Germany has found that musicians playing in a string quartet keep time with one another in two distinctly different ways. One, way, the team explains in their paper published in Journal of the Royal Society: Interface, is to play follow-the-leader—everyone adjusts their tempo to one leader. The other way is far more democratic—all of the players constantly change their tempo to keep time with everyone else. In watching and listening to a string quartet, it generally seems as if all they players have an internal metronome—they all seem to keep perfect time with one another without having to make adjustments. In reality, players must make adjustments all the time, at least most of them. Different kinds of music require different types of tempo control—rock and pop music follows the percussionist—generally the drummer. Orchestras rely on a maestro with a baton to maintain a steady pace. String quartets, on the other hand, have no set le