I should add a bit of context to my question; I asked because I have been involved with various bands and orchestras in the past and so already own a formal tailcoat and tuxedo jacket. I was simply curious if I could use the former with trews to make a more Scottish evening outfit.
I have occasionally seen high-cut trews and lower-cut tartan trousers worn with a dinner (Tuxedo) jacket at black-tie events in Scotland. Not my preferred look but it is done.