Comparison recordings of Spem in Alium:
                Oxford 
                  Camerata Naxos 5.110111 DVD-Audio/dts/AC-3
                Peter 
                  Phillips, The Tallis Scholars. Gimell 454 906-2
                Richard 
                  Westenberg, Musica Sacra Chorus, BMG/RCA Dolby Surround 09026-60970-2
                As you can see, this fourteen 
                  minute disk with eight minutes of music on it is a “single.” 
                  In the six minute talk these eight very capable musicians describe 
                  how they make up eight choirs of five voices each, not by running 
                  about on stage to make their entrances wherever they occur, 
                  but by recording each part separately. They then allow the engineers 
                  to arrange them in the pattern of a horseshoe, as they say the 
                  original performance was conducted, beginning in the right front 
                  speaker and then moving around the horseshoe behind the listener 
                  to the left front speaker. Other quadraphonic performances move 
                  around the front of the listener.
                I have no idea what the 
                  product will cost in the market-place, even if you get it free 
                  it’s not worth the price. The problem is the resultant sound. 
                  It is barely listenable on my small computer speakers in two 
                  channel stereo but even there the artifacts of excessive knob 
                  twiddling are unfortunately evident. There’s something very 
                  unnatural about the sibilants, and the notes tend to scoop disagreeably 
                  at times. The reverberant acoustic is at best unreal and at 
                  worst a strident hash. I fear they recorded each of the separate 
                  eight choir lines - transposed down a whole tone to fit the 
                  music to the ranges of the singers - in a dead studio and then 
                  expected the engineers to add artificial reverberation to the 
                  resulting spatial up mixture. The actual vocal performances 
                  were probably quite good, and the potential quality was very 
                  high, but whatever promises were made, the engineers did not 
                  deliver. The result is, at best, artificial sounding on two 
                  channels. On four channels it is grotesque and unpleasant.
                As a curiosity this disk 
                  may become a collector’s item of some value in the passage of 
                  time. But, if you really want a good recording of this work 
                  any one of the ones listed above is more satisfactory. 
                Musica Sacra is a New York 
                  group of considerable reputation; they rush through Spem 
                  in alium in under eight minutes. They avoid acoustical overload 
                  in the cathedral of St. John the Divine by singing rather quietly 
                  and with supporting lines dropping in volume behind solo lines. 
                  Their recording released in Dolby Surround Sound does provide 
                  sound sources throughout the listening space, although not with 
                  the accuracy of the discrete 4.0 sound, however beautifully 
                  they sing and however smooth and ambient the recording. Matrix 
                  quad (such as AC-3, that is Dolby Surround) is like sex in that 
                  it only works if you don’t try to figure it out. Even the recording 
                  by The Tallis Scholars, who complete the work in just under 
                  ten minutes and who sing with drama as well as sweetness, expands 
                  satisfactorily in surround sound processing to fill the listening 
                  space. Both these recordings avoid the ringing overload heard 
                  on the Summerly recording. Heard under optimum circumstances, 
                  these three recordings are different but are dead equals in 
                  terms of overall beauty and commitment.
                On any recording of the 
                  music of Tallis, the inevitable question must be answered: No, 
                  this disk does not contain the piece upon which Vaughan Williams 
                  based his Tallis Fantasia. I know of no recording of 
                  that work, and I had to find the score and make myself a MIDI 
                  file in order to hear it played on my computer.
                Paul Shoemaker