I think only True Administrator and Sadistic Yuan Xian are not parody tracks, since those two are done in their usual style. The titles don't seem to parody anything either. I'm not a jazz expert, so I have no idea about which tracks they parody. Though, some people in the comments section of the video mentioned some other sources:
Michel Camilo - Sandrine I (Suite Kasodanine I)
Chick Corea & Elektric Band - Got a Match? (Got a Marionette)
Thanks! I love how they basically took a few jazz tracks and infused them with 2hu awesomeness!
I also think that Sadistic Yuan Xian and True Administrator sound like their other songs so they may not be parodies/references, but what about Down in the Mausoleum and Racoon's Welfare? The former sounds like it's an original song (without any elements from a more well-known jazz song), while the latter does sound more funky/groovey than their usual songs so it may be a reference to something.