It appears that Record 5, or music disc far, or item ID 2260, which is a bright green disc, appears as a chirp disc (item ID 2259) on the Auction.

I saw a red disc being sold, but it had the description "Far." Don't have a screenshot, but if you hover over the far disc on the Music Discs section (you'll notice there's two red discs, it's the one on the right):



So I buy out this red Far disc for 4,000 Nbz, and checked my Collection chest:



Turns out it was a chirp I would pay 4k for a far, but for a chirp... well, good thing I don't have it yet. Can the auction icon for far be corrected?