I've had numerous articles featuring the Big Band Era.  To the right Tommy and Jimmy Dorsey, with Janet Blair.    In 2020 I posted: My favorite song #56 enters the Big Bang era, and today, I feature Jimmy Dorsey: I'll Be Seeing You All the Things You are I'm Getting Sentimental Over You In the beginning there were the Dorsey brothers, Jimmy (left), elder, and Tommy.  In their early group was Rudy Vallee.  They joined Paul Whiteman in 1927 and in 1929 had their first hit.  In 1934 they signed with Decca, and a member of their band was Glenn Miller, who received a loan from Tommy to form his own band.  The brothers had a falling out, so in 1935 Tommy, who played the trombone, formed his own orchestra.  Frank Sinatra became a singer with him, then quit. Boogie Woogie  came in 1939.  Frank Sinatra returned from the Harry James band in 1940 and they made 80 records.  In 1940  I'll be Seeing You ,  written by Sammy Fain and Irving Kahal made it to #4, but the  Bing Crosby sol