As each string or tuner posts loosens, the springs compensate, maintaining exactly the tension you set the first time you tuned the guitar, no matter how hard or how often you play.
The Lotus car ran for the first time after missing the first day of the test, with Venezuelan Pastor Maldonado setting the sixth-fastest time overall.
Russian Daniil Kvyat was impressive in the Toro Rosso, setting the eighth fastest time in only his second outing in an F1 car at a grand prix.
But whatever the issue was, it was not serious enough to prevent the German setting the second-fastest time behind his team-mate.
Ferrari's Fernando Alonso also beat Hamilton's mark in setting the second fastest time of the winter, 0.364 secs behind Rosberg.
Massa was third, while David Coulthard of Red Bull broke up the Ferrari-McLaren domination by setting the fourth-fastest time, ahead of Kovalainen.
A day south of the Bering Strait, the crew saw the sun set for the first time in three weeks.
Being on a film set for the first time seems not to have fazed him one bit.
The judges also set for the first time a mechanical royalty rate for master tones, ring tones made from a snippet of music from a full recording.
The new circuit breaker system was set off the first time on June 16, after the share price of the Washington Post Company nearly doubled in an instant.
It would also host the Russian feminist punk band Pussy Riot, who were to perform a live concert set for the first time.
