Cubist is the song, which can be heard in three games of Jill of the Jungle series.
The title comes from the file name, but Dan Froelich explained that the file names were in fact the proper full titles. The file in the game folder is named CUBIST.DDT.
Jill of the Jungle: Jill Goes Underground (DOS)
In the second game of the series Cubist is played in "Underground" (levels 1 and 2), "Bonus" (level 14) and "Think Fast" (levels 17 and 18).
Jill of the Jungle: Jill Saves The Prince (DOS)
In the third game of the series Cubist is only played in Un-named level 12.
Onesimus: A Quest For Freedom (DOS)
In Onesimus the song is used twice in "Dungeon" (the level uses three songs with two other being Stealth and Neoclassic). Cubist plays at the beginning (level 11) and after the fourth checkpoint (level 14).
The file in the game folder is named SONG16.ARK.