My Bloody Valentine - when you sleep, 1991

"We recorded the drums in September '89. The guitar was done in December. The bass was done in April. 1990 we're in, now. Then nothing happens for a year really. So it doesn't have vocals at this stage? No. Does it have words? No. Does it even have a title? No. It has a song number. "Song 12" it was called. And ... I'm trying to remember ... the melody line was done in '91. The vocals were '91. There were huge gaps though. Months and months of not touching songs. Years. I used to forget what tunings I'd used."