Yea, Tibbetts is great. I have all his LP's, including three copies of "Yr.'
Yr, was released on the ECM Records label, catalog number 1355 (1988), and is probably the recording you are enjoying.
However, this was originally released on Frammis Records (in 1980), some of which was recorded at Atma-Sphere. I have the original LP and my cover is the "night sky" art work. I believe it was also released with "day sky" artwork.
The day and night sky art work images are drawings by Steve Tibbetts himself. On the rear of the dust jacket is a photograph of Steve standing in his front yard. Looks to be about 8 years old at the time.
The ECM is edited from this original LP. If you really love this music, try to find the original. Not only is the ECM NOT FROM the master tape (but a copy of) one of the tracks has instruments missing.
I heard rumor that ECM could not get rights to that particular musician, so they edited him out.