diff --git a/engines/kyra/kyra.cpp b/engines/kyra/kyra.cpp
index 74505b4adf2..97644c02625 100644
--- a/engines/kyra/kyra.cpp
+++ b/engines/kyra/kyra.cpp
@@ -646,6 +646,7 @@ void KyraEngine::startup() {
 		error("Could not load \"_NPC.EMC\" script");
 	}
 	
+	snd_playTheme(1);
 	enterNewScene(_currentCharacter->sceneId, _currentCharacter->facing, 0, 0, 1);
 	
 	if (_abortIntroFlag && _skipFlag) {
diff --git a/engines/kyra/sound_adlib.cpp b/engines/kyra/sound_adlib.cpp
index c74d9a0f1a7..b15a8514a05 100644
--- a/engines/kyra/sound_adlib.cpp
+++ b/engines/kyra/sound_adlib.cpp
@@ -844,7 +844,7 @@ void AdlibDriver::setupDuration(uint8 duration, OutputState &state) {
 	debugC(9, kDebugLevelSound, "setupDuration(%d, %d)", duration, &state - _outputTables);
 	_continueFlag = duration;
 	if (state.unk11) {
-		state.unk5 = duration + (getRandomNr() & state.unk11 & 0xFF);
+		state.unk5 = duration + (getRandomNr() & state.unk11);
 		return;
 	}
 	if (state.unk12) {
@@ -1666,7 +1666,7 @@ int AdlibDriver::updateCallback50(uint8 *&dataptr, OutputState &state, uint8 val
 	_unk4 = 0;
 
 	// Amplitude Modulation Depth / Vibrato Depth / Rhythm
-	writeOPL(0xBD, value & _unkOutputByte2);
+	writeOPL(0xBD, _unkOutputByte2 & 0xC0);
 
 	return 0;
 }