Doom II music

The soundtrack of Doom II consists of music in MUS format composed by Robert Prince. 21 distinct tracks are present. At least some of these are known to have originally been written for Doom. Two of the tracks are re-adapted by Prince from his earlier work on Wolfenstein 3D.


 * 1) The inspirations for the tracks noted above are substantiated by metadata comments found in the  released by John Romero, many of which are alternate versions of the MIDI tracks used in Doom.

Trivia

 * "The Dave D. Taylor Blues", which is present thrice in the IWAD, exists in two slightly different versions:

!Lump names!!Size!!CRC-32
 * D_DDTBLU||64571||629660ef
 * D_DDTBL2 and D_DDTBL3||64808||6ab6cf4e
 * }
 * Audible differences:
 * A cymbal crash can be heard at the very beginning of D_DDTBL2 and D_DDTBL3, which is absent from D_DDTBLU.
 * The intro passage is an extra measure long in D_DDTBL2 and D_DDTBL3.
 * The instrument on the descending tones that repeat every two bars throughout the song is changed for the sixth "repeat" of the song in D_DDTBLU (to a kalimba), and is not for D_DDTBL2 and D_DDTBL3 (where it remains the instrument from the fifth repeat - FX 2 (soundtrack)).
 * The final note in the song's lead melody is the correct length in D_DDTBLU, while in D_DDTBL2 and D_DDTBL3 it appears to be of infinite length (in General MIDI this is defined as 546 bars and 15 tics). In-game it will either play for the length of the whole final measure, or hang indefinitely; in the latter cases it will either prevent the song from looping, or the note will persist across all further loops of the song.
 * It can perhaps be surmised that D_DDTBLU is the "correct" version of the track.
 * The final note in the song's lead melody is the correct length in D_DDTBLU, while in D_DDTBL2 and D_DDTBL3 it appears to be of infinite length (in General MIDI this is defined as 546 bars and 15 tics). In-game it will either play for the length of the whole final measure, or hang indefinitely; in the latter cases it will either prevent the song from looping, or the note will persist across all further loops of the song.
 * It can perhaps be surmised that D_DDTBLU is the "correct" version of the track.


 * "Waiting for Romero to Play" was used instead of "Dark Halls" for E1M3 in an unreleased beta, as seen during a Visit to id Software.
 * In the version of Doom II included in Doom 3: BFG Edition, D_EVIL and D_ULTIMA are copies of D_DOOM. The "Doom" song is therefore used in both secret levels and during the cast sequence.