Julianna Barwick, whose delightfully warm and echoing “Bode” graced this site yesterday, stopped by the Time Out New York offices to give a live demonstration of her ethereal one-woman choir technique. On display: the adept vocal range she bragged about to us yesterday; loops in action; and what appears to be a staff meeting going on in the background. Push through the first awkward thirty seconds and be impressed. Improbably, tickets seem to still be available for her show with Tim Hecker at the Miller Theater as part of the Wordless Music Series. So there’s that, too.