Here is a pianist who knows the value of silence, dramatically so when he storms through the great first movements of the Pathetique and Appassionata sonatas.
A master of phrasing, Houstoun insists that musical sentences make sense and communicate. How generously he allows the great slow movements to bloom, even with the occasional moment of deliberated reticence.
All is not unceasingly profound. In the 41 pages of commentary in the accompanying book is talk of drunken trios and puckish wit.
Houstoun does not shirk the philosophical implications of the late sonatas, in both performance and commentary. He marvels at how passions, sufferings, striving and desperation are given a cathartic release in just nine bars of the final sonata.
He feels that this work, awkwardly described as "the transcendental essence of humanness", will challenge both pianists and listeners and its rewards will be unfathomable.
In music, as in life, mysteries may remain and possibly should, but this fine collection takes us so much nearer to realising and appreciating their implications and significance.
Verdict:
New Zealand's premier pianist excels in the ultimate Beethoven challenge.