There is no opportunity to hear Beethoven or Mozart conducting their own works, so one must hear modern interpretations of the music, and no-one can say which performance most closely matches what was imagined by the composer. We are fortunate, however, to have surviving recordings of Stravinsky and Copland conducting their own works, and we can listen to those works purely and directly from the mind of the composer through the orchestra under his control. Of course, we often fall in love with the first performance we hear of a favorite piece, so perhaps Copland's interpretation isn't how you remember it. But it is the standard by which all other performances should be judged. These are wonderful recordings of groundbreaking music, and you would be remiss to pass up this opportunity to hear exactly what Copland meant.