Henry Cowell ‘Air and Scherzo’

Does anyone know where to get the piano reduction for Henry Cowell’s ‘Air and Scherzo’ for alto saxophone and small orchestra? I played this piece for a competition years ago but seem to have lost my piano reduction. It also seems that it is not available anywhere on the internet.

Henry Cowell was a true American original and if you haven’t checked his music out I would highly recommend it! Much of his piano music features dark sounding tone clusters and can be rather dissonant. That’s one of the things that makes Air and Scherzo so interesting; it’s fully of lyrical beauty. The air is a very simple melody over rather plain accompaniment. Both movements feature some rather challenging altissimo.

I’d be very grateful to anyone who can help me out with this!