Midge Ure's long career in the pop music world hasn't been nearly as celebrated here in the States as it's been in his native UK. That is, if you don't have a penchant for '70s and '80s synthpop. Ure got his start as a member of Visage, the glitzy group behind dancefloor classic "Fade to Grey," before taking over as leader of the equally plush-sounding Ultravox. Along the way, he also contributed to some of Thin Lizzy's late '70s albums and co-wrote the now ubiquitous holiday single "Do They Know It's Christmas?" Tonight Ure returns to town to promote his seventh solo album, Fragile, a strong collection of modern, synth-kissed pop that finds the 61-year-old singer/songwriter striving for understanding in both romantic and spiritual concerns, and showing off his still-youthful-sounding vocals. ROBERT HAM