Stevie Wonder, Songs in the Key of Life – The EP (Motown/UMe) (Apple / Amazon) On September 28 – five decades to the day since Motown Records welcomed Stevie Wonder’s Songs in the Key of Life into the world – another miracle occurred. Loosed from Wonder’s vaults (a phrase that’s almost never been applicable in the modern catalogue music era) comes another “A Something’s Extra” collecting four outtakes from the original double album-plus-EP. (Unlike, say, Timeless, these tracks appear to be free of contemporary overdubs, only newly mixed from their original sources by John…