On the matter of "Somewhere," Aretha sounded fine in her soul-drenched manner. Hugh sounded fine as a show singer. But they should never do a duet of a show song. Their styles are too divergent, and it ended up a mess. The song's beautiful, they're wonderful performers, but they should each have done a verse ALONE and let one of them end it, but not both.
Years ago when "Beauty and the Beast" was up for the Best Song Oscar, the producers let Angela Lansbury, who introduced it in the movie, sing the first verse, then the duo (Peebo Bryson and someone else) who made a pop version of it that sold big sang a verse. Unwisely, they brought them together for the finale, and the song lessened in impact because their styles were just not compatible.