"Heinz Holliger's accounts of the Oboe Concertos are masterly. In addition to the excellence of the support from the ECO under Leppard, the Philips engineering is distinguished." (The Penguin Guide)
"The Bach Sonatas are marvellously played, with all the beauty of tone and line for which Grumiaux is renowned; they have great vitality too." (The Penguin Guide)