In the mid-1960s Roger Smalley was a leading exponent of the music of Stockhausen (whose student he became). But except for his own performance of Klavierstück IX (at his piano recital which I did not hear) this early influence was hardly to be felt in the 60th birthday celebrations hosted by Trinity College of Music, London in May. Under the overall artistic direction of Douglas Finch, a series of concerts and recitals presented a cross-section of work from the past two decades.