online forum, a recording was made simultaneously in countries around the world: volunteers were asked to record exactly the same twenty minutes of their environment wherever they were in the world, regardless of time-zone, but to include something that marked the hour changing. Volunteers recorded dawn choruses (Australia), tolling bells (Australia), railway station announcements (New Zealand), clocks in a clock shop (San Francisco), ambient sound in Police Square (Manhattan), evening traffic (Berlin), the backstage at English National Opera (London) late night rains (Tunis) late night chatter (Mumbai), the sounds of the jungle (Laos), dogs barking (northern Alaska). Resulting in a complex array of sounds that coalesced into a moment of intensity as the hour struck and then dissipated back to the disparate ambient environments. Time structured mapping In his search to incorporate the philosophy of Simultaneity within western musical systems, Wyer returned to a frequent inspiration; birdsong; struck by the endless combinations and re-combinations of the songs of the dawn chorus he began considering ways to create systems that would enable simultaneous solos that combined in musically intelligent, coherent ways - that necessarily moved away from the western convention of counting a beat for each bar. In 2005 Wyer made his first Time Structured Maps using the same basic scores as might be used for an orchestra but where each bar-line represented a period of 30 seconds rather than a count and each ‘bar’ consisted of a set of instructions for how to improvise during that time period, which might be very specific or left ambiguous. The result was a system that enabled musicians from all backgrounds to play together, and to incorporate other forms such as dance, speech etc. within a score. The first significant work for the system was for the Orchestra of the Swan with a Time Structured Map (TSM) based work called Traveller, There Are No Paths, Paths Are Made By Walking created in the summer of 2005. A second, much more ambitious work, Four Bridges, was performed in November 2005, it combined the ideas of Simultaneity with the Time Structured Mapping system: the Orchestra of the Swan played from the score in England while pianist Burkhard Finke in Frankfurt, microtonal vocal specialist Toby Twining in Boston and Indian Classical singer Anand Thakore in Mumbai performed simultaneously from the same score, without hearing each other – each performance was recorded and later combined into a work