George Frederick McKay · section 64 of 111

Project 16

After preliminary experimentation in invention of attention-getting motor activity for each instrument, use the best of the resulting measures as a basis from which to develop a number of short duos. Employ instruments which afford contrasting motor potentialities: such as fluidity opposed to brittleness (flute and wood block), legato opposed to staccato (saxophone and snare drum), substantiality opposed to delicacy (trumpet and pizzicato viola). If possible, include the piano or the harpsichord in some of the duo combinations, since these are natural instruments of motion. When instrumental motion is featured, the

texture often will tend to be polythematic or polyrhythmic. There is an illustration of this type of combination on page 116.