A limited-release edition of holiday tunes put out jointly by the U.S. Postal Service and Concord Music Group, Let It Snow, like the previous year’s compilation, Letters to Santa, is distributed seasonally only at post office locations, which means it’s keyed for the widest possible range of audiences. That doesn’t make it a lame collection, though, and it's full of wonderful holiday gems like Ella Fitzgerald's “Let It Snow! Let It Snow! Let It Snow!,” Frank Sinatra's “Santa Claus Is Coming to Town,” and a wonderful duet by Ray Charles and Betty Carter on “Baby, It’s Cold Outside," among others. Intended for the season of good will, these 12 tracks definitely fit the bill.