A transcription of Lasso’s (or Lassus’) famouns Echo song, this arrangement looks exactly like the original, so much so that an original score was included rather than a transposed one provided. The key used is the original one (so the conductor has a score and C, and the parts are notated a fourth higher). What was not taken from the original, and this is odd as it was specially noted, is the echo effect. This effect is achieved through halving the dynamics of the second choir. Hyde instead uses the exact same dynamics, and there is also no mute marking. Perhaps the second quartet was positioned further away from the audience. Anyways, this is a minor detail that can be rectified by the performing ensemble.
As with numerous other, older arrangements, the low parts are not notated in bass clef, which means there are a ton of leger lines (and then the customary two or three bars in bass clef, once it goes lower than c). Other than that though it is a good rendition of a good work.