Ever since Moon Safari was hailed as an instant classic, Air have swung back and forth between the experimental and accessible sides that Nicolas Godin and Jean-Benoît Dunckel united so perfectly on their debut. 10,000 Hz Legend might have been too grandiose and aggressively experimental for some Air fans, but Talkie Walkie sometimes felt as if the duo was presenting the most widely palatable version of their music possible. On Pocket Symphony, Dunckel and Godin find a balance between pretty and inventive that they haven't struck since, well, Moon Safari, even though it isn't nearly as immediate - even by Air's standards, this is an extremely introspective and atmospheric album. It's beyond clichéd to call the duo's music filmic; nevertheless, "Space Maker" and "Night Sight" play like the album's opening titles and ending credits, bracketing a set of songs that are sadder and wiser than anything Air has done since The Virgin Suicides…