Zbigniew Namyslowski Quartet in Jasmin Lady, 1979

Surprisingly, given the high interest currently in all Eastern European jazz and fusion, most of Namyslowski's material is not readily available for digital consumption.  About half appear as solo works on that link, and half as quartet works.  Of the ones I've heard, which are not all by any means, the 1977 ST with strings album stands head and shoulders above the rest without a doubt.  It's easy to find and cheap too (recently reissued, I think).

This album came in the late 70s when the style (jazz, fusion) was juggling the forces of commercial appeal with more honest experimental musical efforts.  Sometimes the ball fell on the former side, sometimes the latter, in the case of the LP today, more the former.  First track curiously called Kaloryfer: