I am pleased to announce that the site is completly stable now and is running at peak performance. Thank you for your patience and understanding whilst we worked on this issue.
Vocals removed and then put back in at a frequency 33 cents sharp of the backing, or roughly one third of a fret on a guitar.
This corrects for the superbugg-cockwombleⓅ effect where medium to loud headphones depress the preception of pitch by 33 cents, roughly minus 5hz at middle C, and singers traclk that perfectly - flat!
Listen to this then compare to the version courtesy of AndrewMwah https://ourtube.co.uk/video/57555