All the music in Heretic was created by Kevin Schilder of Raven Software. As expected by the fantasy setting of the game compared to Doom's more science fiction setting, the music is a very different style to Doom's.
Heretic's soundtrack is more ambient and has different instruments with more drums and harps as well as what sounds like a choir singing various "ah" sounds in fluid rhythm.
|E1M1, E3M1, E4M6||MUS_E1M1|
|E1M2, E3M6, E4M2||MUS_E1M2|
|E1M3, E3M5, E4M3||MUS_E1M3|
|E1M4, E2M5, E4M4, E5M5||MUS_E1M4|
|E1M5, E3M7, E4M5||MUS_E1M5|
|E1M6, E3M4, E4M1, E6M3||MUS_E1M6|
|E1M9, E3M8, E4M9||MUS_E1M9|
|E2M3, E5M3||MUS_E2M3||Kevin Schilder's original title for this track was "Bluroc"|
|E2M6, E3M9, E5M6||MUS_E2M6|