Although not a general rule (at least for me), I would see some Czech music more "at home" with a domestic orchestra .... in this case :
Recorded in February 1975 .... btw this Cover Art used for a Quadrophonic Reissue in 1981 ....
An excellent album which somehow flew under the radar ..... Ry Cooder had (as often) an impeccable taste for selecting the band .... and a good feeling where to hand over lead vocals .....