/rename "E:\Masters of Classical Music\02 - Masters Of Classical Music - Vol 1 - Wolfgang Amadeus Mozart - Piano Concerto in A major, K 488 - Adagio.mp3" "E:\Masters of Classical Music\sprtmpmove\02 - Masters Of Classical Music Vol 1 - Wolfgang Amadeus Mozart - Piano Concerto in A major, K 488 - Adagio.mp3"
Not sure if you realised, but you added a directory in there..
/rename "E:\Masters of Classical Music\02 - Masters Of Classical Music - Vol 1 - Wolfgang Amadeus Mozart - Piano Concerto in A major, K 488 - Adagio.mp3" "E:\Masters of Classical Music\
sprtmpmove\02 - Masters Of Classical Music Vol 1 - Wolfgang Amadeus Mozart - Piano Concerto in A major, K 488 - Adagio.mp3"