New Delhi, March 6 -- A lilting flute melody floats uneasily over see-sawing synths and a bass attack so heavy that it rattles the delicate, coloured-glass windows. Percussive dhol rhythms find themselves wrapped in velvety reverb, as if trapped by the handpainted clouds covering the walls and ceilings. Inspired by the monsoon, Badal Mahal is a fine-dining restaurant that sits atop a 17th century Rajasthani fort, where patrons can cosplay as old school Indian nobility. But for a few days last December, its cloud-motif ambience incubated a very different kind of sonic thunderstorm, as UK producer Vivek Sharda and a group of Rajasthani musicians perfected their apocalyptic, awe-inspiring fusion of desert folk and post-industrial electronics...