presents the trumpet the way it is – no strange effects, no demands for playing
techniques which would transform its character. Berio’s stroke of inspiration was
to use a piano, invisibly amplified and with the loudspeaker hidden under the
piano. The lid is fully open; the trumpeter must occasionally play into the
piano. Berio uses the echo effects very sparingly – so it is all the more
captivating when they do sound, with the trumpet continuing to play with its
own echo in the background.