This is an excellent CD or three valuable 20th century violin concertos played by one of our greatest violinists.
The main piece is the great Berg Violin Concerto. Here I disagree with Alan Boyes' review for I think Zehetmair's account is an excellent one. True, the approach is more classically restrained than that adopted by most violinists, who choose to stress the late Romanticism of the piece, but there are great gains from this approach - mostly concerned with clarity of line and structure - and Zehetmair's approach should not be downplayed or undervalued. The result is moving and beautiful and totally convinces as the "memory of an angel". The performance is not a weak or merely limpid one, though: this Berg wears its modernism with pride!
For the other two pieces, I am 100% with Mr Boyes - they are notably (exceptionally!) fine rarities and very well worth having. The Hartmann is a fine piece of mid-century writing and is filled with attractive and notably memorable material. The Janacek is a recreation of an unfinished work (mere fragments, apparently). You can hear that we missed out on something special but enough was rescued to make the reconstructed piece more than worthwhile.
Zehetmair has always had the character and the confidence to let music speak for him and somehow he shines all the more as he makes his performances about the music rather than about himself. He is joined in these three pieces by Heinz Holliger, more famous as an oboe virtuoso and avant garde composer than as a conductor, but nevertheless a conductor with some track record - notably in Berg, Strauss and Schoenberg. This is an excellent record and a bargain.