Performed by the Orchestra Da Camera Di Mantova on the 15th Nov 2005 in the Auditorium Paganini of Parma (http://www.teatroregioparma.org/concertistica/15novembre/15novembre.htm).
I employed the ST-250 Soundfield microphone, which was just extracted from its package after having beng serviced are re-aligned at the factory. This means that the mike now does not have anymore those annoying gain and phase mismatches which affected its
operation in the past.
However, the positioning was not really optimal: the mike was suspended above the director, a bit ahead of him, so it was definitely raised over the orchestra. Consequently, there is a lot of signal on the Z channel.