Boertien put himself with visible pleasure in the role of clarinet or trumpet. But even more than imitating them on the piano, he searched for the unbridled fantasy of such a clarinetist or such a trumpet player. Extremely skilfull. (...) Sometimes driving, sometimes waiting Boertien gave the singers plenty of room for expression. And how he played the postludium of that last song - unearthly beautiful.
© Martijn Gijsbertsen