Jake Kaufman wrote an entire classical-themed card game soundtrack within a Shovel Knight game and it's absurd how good it is. King of Cards splits between bombastic platforming tracks and the Joustus card game suite, which goes full baroque with titles like "Magmazurka in A Mine-r" and "Cannon in B-Flat Major."
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The puns are terrible but the compositions are dead serious, layered chiptune counterpoint that sounds like Bach got an NES. "Visiting Mom" is this tiny, tender piece that cuts through all the royal pomp. The storybook intro sets King Knight's pompous tone perfectly.
Then the Joustus victory theme hits with this smug little fanfare that matches his personality exactly. If you skipped King of Cards thinking it was filler DLC, the soundtrack alone says otherwise.