The MF DOOM cut in particular may sound a little familiar.

During an Instagram Live on Monday night, Alchemist played a number of songs he has produced, some of which have never seen a proper release.

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In a series of videos taken by Twitter user @ammofr, the producer played a rare cut from MF DOOM, as well as unreleased joints from Roc Marciano and the late Prodigy. If the DOOM cut sounds familiar, that's because it's the same instrumental for Action Bronson's "Terry," which appeared on his debut 2014 album, Mr. Wonderful.

READ: Alchemist Says Madlib "Would Absolutely Destroy Me" In a Beat Battle

In related news, Alchemist turned down the idea of having a beat battle against Madlib.

"Madlib would absolutely destroy me. Are you crazy, man? I ain't going up against that man," the LULU producer said in a previous interview with Elliott Wilson. "Madlib is like my idol. That's my brother, too. He's in another planet on his own. He’s his own genre."

As for Doom, the enigmatic rapper recently appeared on the Bishop Nehru track "MEATHEAD," which Doom also produced. The track will appear on Nehru's Nehruvia: My Disregarded Thoughts project.

"DOOM just kept telling me to stop overthinking things," Nehru said of the track. "And that I needed to use my own intuition more. He taught me how to really embody the music and feel it deep inside my stomach."