In the 80s and 90s there were many excellent magazines on the market and one I bought each month was ClassicCD, their first issue was June 1990. All of those magazines, for one reason or another, have ceased publication.
The ClassicCD magazine usually had a CD attached to it with selections of music from newly issued CDs which were reviewed within the pages of the magazine. From the reviews and the CD I discovered a lot of new composers and artists; new to me that is.
One such was Alfred Schnittke who first came to my attention playing piano on Arvo Pärt's composition 'Tabula Rasa' (a fabulous minimalist piece of music which also features the violinists Gidon Kremer and Tatjana Grindenko) https://en.wikipedia.org/wiki/Alfred_Schnittke
It was after buying that CD that I discovered, via ClassicCD magazine, that Schnittke was also a composer. The following videos are a representative selection of his varied work.
Note: video 4 here is the opening of Schnittke's Requiem set to a film excerpt from Fritz Lang's 1921 film "Der Müde Tod". Videos 5, 6 and 7 are the five movements of 'Suite in the old style' (that's what Google translate tells me!)