4 files changed, 20 insertions, 6 deletions
diff --git a/engines/saga/detection_tables.h b/engines/saga/detection_tables.h
index b26a9b75d5..22e5ccdc50 100644
--- a/engines/saga/detection_tables.h
+++ b/engines/saga/detection_tables.h
@@ -713,6 +713,7 @@ static const SAGAGameDescription gameDescriptions[] = {
 			"ihnm",
 			"Demo",
 			{
+	{"music.res",		GAME_MUSICFILE_FM,	"0439083e3dfdc51b486071d45872ae52", -1},
 	{"scream.res",		GAME_RESOURCEFILE,	"46bbdc65d164ba7e89836a0935eec8e6", -1},
 	{"scripts.res",		GAME_SCRIPTFILE,	"9626bda8978094ff9b29198bc1ed5f9a", -1},
 	{"sfx.res",			GAME_SOUNDFILE,		"1c610d543f32ec8b525e3f652536f269", -1},
diff --git a/engines/saga/ihnm_introproc.cpp b/engines/saga/ihnm_introproc.cpp
index 33cfb57ce2..631da37e82 100644
--- a/engines/saga/ihnm_introproc.cpp
+++ b/engines/saga/ihnm_introproc.cpp
@@ -225,6 +225,16 @@ int Scene::IHNMIntroMovieProc1(int param) {
 
 			q_event = _vm->_events->chain(q_event, &event);
 		} else {
+			// Start playing the intro music for the demo version
+			event.type = kEvTOneshot;
+			event.code = kMusicEvent;
+			event.param = 1;
+			event.param2 = MUSIC_NORMAL;
+			event.op = kEventPlay;
+			event.time = 0;
+
+			q_event = _vm->_events->chain(q_event, &event);
+
 			// The IHNM demo doesn't have an animation at the
 			// Cyberdreans logo screen
 
@@ -232,7 +242,7 @@ int Scene::IHNMIntroMovieProc1(int param) {
 			event.type = kEvTOneshot;
 			event.code = kSceneEvent;
 			event.op = kEventEnd;
-			event.time = 4000;
+			event.time = 8000;
 
 			q_event = _vm->_events->chain(q_event, &event);
 		}
@@ -360,8 +370,6 @@ int Scene::IHNMIntroMovieProc3(int param) {
 		// In the GM file, this music also appears as tracks 7, 13, 19,
 		// 25 and 31, but only track 1 sounds right with the FM music.
 
-		// FIXME: MIDI music in the demo is problematic right now, so music is
-		// disabled in this part
 		if (_vm->getGameId() != GID_IHNM_DEMO) {
 			event.type = kEvTOneshot;
 			event.code = kMusicEvent;
@@ -411,7 +419,7 @@ int Scene::IHNMIntroMovieProc3(int param) {
 		if (_vm->getGameId() != GID_IHNM_DEMO)
 			event.time = _vm->_music->hasAdlib() ? IHNM_TITLE_TIME_FM : IHNM_TITLE_TIME_GM;
 		else
-			event.time = 10000;
+			event.time = 12000;
 
 		q_event = _vm->_events->chain(q_event, &event);
 		break;
diff --git a/engines/saga/music.cpp b/engines/saga/music.cpp
index 2e4868f412..24234864aa 100644
--- a/engines/saga/music.cpp
+++ b/engines/saga/music.cpp
@@ -517,8 +517,10 @@ void Music::play(uint32 resourceId, MusicFlags flags) {
 
 		// Oddly enough, the intro music (song 1) is very
 		// different in the two files. I have no idea why.
+		// Note that the IHNM demo has only got one music file
+		// (music.rsc). It is assumed that it contains FM music
 
-		if (hasAdlib()) {
+		if (hasAdlib() || _vm->getGameId() == GID_IHNM_DEMO) {
 			context = _vm->_resource->getContext(GAME_MUSICFILE_FM);
 		} else {
 			context = _vm->_resource->getContext(GAME_MUSICFILE_GM);
diff --git a/engines/saga/rscfile.cpp b/engines/saga/rscfile.cpp
index 3063e8a9a6..2db85cfc65 100644
--- a/engines/saga/rscfile.cpp
+++ b/engines/saga/rscfile.cpp
@@ -683,7 +683,7 @@ void Resource::loadGlobalResources(int chapter, int actorsEntrance) {
 
 	_vm->_anim->loadCutawayList(resourcePointer, resourceLength);
 
-	if (_metaResource.songTableID > 0) {
+	if (_vm->getGameId() != GID_IHNM_DEMO) {
 		_vm->_resource->loadResource(resourceContext, _metaResource.songTableID, resourcePointer, resourceLength);
 
 		if (resourceLength == 0) {
@@ -700,6 +700,9 @@ void Resource::loadGlobalResources(int chapter, int actorsEntrance) {
 		for (i = 0; i < _vm->_music->_songTableLen; i++)
 			_vm->_music->_songTable[i] = songS.readSint32LE();
 		free(resourcePointer);
+	} else {
+		// The IHNM demo has a fixed music track and doesn't load a song table
+		_vm->_music->play(3, MUSIC_NORMAL);
 	}
 
 	int voiceLUTResourceID = 0;