It makes sense that the one-man-band ambient auteur would name his latest album after himself — Richard D. James is his quirkiest, most personal work under the Aphex Twin moniker. The burbling instrumental squiggle pop James pioneered is here, but tracks like ''4'' and ''Girl/Boy Song'' reveal a new warmth and wistfulness, thanks to synthesized string sections that sound radiantly real. If machines could joke or cry, this is how they would sound.