Hi Peter

I also have the recording, and have built and played various Wersi instruments over the last 40 years or so, and while the performance is good, it is not a Helios or a totally accurate representation of the recording.
Be interesting to see what others think, here is the original recording https://app.box.com/s/lg2zdvj0fw82b7ytf2fiyfpyt2pwc1t2

Bill
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