music: new tracks; shuffling. (#1124)

New track "Oxidine" by Korp (based loosely on Jute's previous E1M6 track) slotted for E1M6 replacing "Panic" by Ajanddino.

New track "Hidden Between Spades" by Korp slotted for E1M9.

"Derelict" by continuum.mid moved from E1M9 to E1M7.

"Sewers" by Discoholic and Blastfrog moved from E1M7 to Map12, replacing BobFromReboot's untitled track.

Rationale for posterity:
I really appreciate how Korp managed to take the old E1M6 track and rework it into something that slaps. The current track, while functional and not derivative in a way that would require its replacement, is still very reminiscent of Doom's rock/metal tracks in a way the rest of FD E1's music is not, which just makes the resemblances stick out even more.

"Derelict" has always only marginally worked for E1M9 (or rather it doesn't work, but still works better for it than the current E1M5). The dark, brooding ominous track works *much* better for the antepenultimate level, while the low-key funky riff of "Sewers" works much better for the cluster starter warming up after the intermission text than either "Derelict" or the current Map12 track.

CREDITS-MUSIC

@@ -10,11 +10,11 @@ Episode 1 - Outpost Outbreak
 	E1M1: untitled (e1m1.mid) by Ralph "Ralphis" Vickers
 	E1M2: untitled (map02.mid) by Mark "TheMisterCat" McGill-Smith
 	E1M3: "Alone with Colors" by Kevin "Velvetic" Martins & Jonathan "julnen" Martins
-		E1M9: "Derelict" by continuum.mid
+		E1M9: "Hidden Between Spades" by Korp
 	E1M4: "Flood the City" by Kevin "Velvetic" Martins & Jonathan "julnen" Martins
 	E1M5: "The Raging Sun" by Kevin "Velvetic" Martins & Jonathan "julnen" Martins
-	E1M6: "Panic" by Anthony "Ajanddino" Pierce
-	E1M7: "Sewers" by Discoholic, originally by Samuel "Blastfrog" Oliver
+	E1M6: "Oxidine" by Korp
+	E1M7: "Derelict" by continuum.mid
 	E1M8: "On the Next Day" by Kevin "Velvetic" Martins
 
 Episode 2 - Military Labs
@@ -71,7 +71,7 @@ Cluster 1
 	MAP11: "Inside the Ruins" by Korp
 
 Cluster 2
-	MAP12: ? by Bradley "BobFromReboot" Lavigne
+	MAP12: "Sewers" by Discoholic, originally by Samuel "Blastfrog" Oliver
 	MAP13: "Fear" by Discoholic
 	MAP14: "About the Summer" by Kevin "Velvetic" Martins & Jonathan "julnen" Martins
 	MAP15: ? by Lola "BlueWorrior" Harvey
@@ -137,3 +137,9 @@ Story: (same as Phase 2)
 	DM30: "Freedom for Your Shooting Skills" by rostuhan
 	DM31: "The Syntax of Time" by Kevin "Velvetic" Martins
 	DM32: "Bullet Hell" by rostuhan
+
+
+--Previously Featured--
+
+"Panic" by Anthony "Ajanddino" Pierce (E1M6)
+? by Bradley "BobFromReboot" Lavigne (Map12)