Out of thin air

Music fans love to meet performers, but I'm thrilled to make contact with composers.  They're making music out of thin air using pure imagination.  One of my fond memories of the late Richard Gladwell is seeing his face suffused with pleasure as he told of meeting composer Ralph Vaughan Williams decades ago at a concert in London.  Williams' music is a cornerstone of twentieth century Romanticism, and we heard his Five Variants of Dives and Lazarus as our 6:40 mystery piece.  The composer didn't completely make this up: it's based on an English folk song.  But it's a marvel all the same.