"Loom" was the fourth game to utilize the SCUMM engine and was released in 1990. Designed by Brian Moriarty, the game was set in a fantasy setting. As well as updating the engine's graphics through the use of dithering, "Loom" marked a major deviation in interacting with the game's world. Instead of using the standard point-and-click interface of previous games, "Loom" requires players to use four-note musical tunes to create spells on objects or other characters. "Loom" also introduced the game design philosophy that the player character cannot reach a dead-end or die; this design decision was applied to all later adventure games, with the exception of Indiana Jones and the Fate of Atlantis. A later added Red Book CD-DA music featuring the compositions of Pyotr Tchaikovsky and a full voice soundtrack (although, as a consequence of using Red Book CD-DA for the speech, the dialogue script had to be shortened considerably to fit on the CD-ROM).