Because H2O comes as a package with many of the configurations already tuned, set up is easy, requiring less of a learning curve than most other free options.
They may have been used to tune sets of bells or stone chimes, but the classical writings on music discuss a 12-tone system in relation to the blowing of bamboo pipes (lü).
But somehow the jittery rhythmic figure leading into the big tune set off heretical notions.
It's followed by Interlude, a gorgeous, fragile tune set to a harp accompaniment.
In the aftermath of the financial crisis, they have been dancing to the tune set by politicians and central bankers.
It could crush practice-based commissioning if GPs felt they were more like decommissioners, having to dance to some tune set by organisations higher up than them," Dixon says.
Amid concerns that the Tories are dancing to a downbeat tune set by Ukip in relentlessly warning that Ed Miliband offers chaos, the prime minister is being told that the party performs best when it embodies an optimistic future.
Even now, there's something deliciously surreal about watching a hugely accomplished brass section schooled in jazz – including Ed Neuhauser wielding an ungainly helicon above his head – dancing like dervishes as they blast into another manic tune set.
Pitch was successfully controlled by the 9th century, when tuned sets of small bells (called cymbala) appeared.
Along with xylophones, which ranged from simple sets of three "leg bars" to carefully tuned sets of parallel bars, various cultures developed instruments such as the ground harp, ground zither, musical bow, and jaw harp.
