diff --git a/src/deluge/gui/ui/browser/browser.cpp b/src/deluge/gui/ui/browser/browser.cpp
index 88bd032199..d88e449b6a 100644
--- a/src/deluge/gui/ui/browser/browser.cpp
+++ b/src/deluge/gui/ui/browser/browser.cpp
@@ -37,6 +37,7 @@
 #include "util/functions.h"
 #include <cstring>
 #include <new>
+#include <strings.h>
 
 using namespace deluge;
 
@@ -395,6 +396,12 @@ Error Browser::readFileItemsForFolder(char const* filePrefixHere, bool allowFold
 	return error;
 }
 
+// TODO: dubplicate for testing...
+static bool isSYXFile(FileItem *item) {
+	size_t len = item->filename.getLength();
+	return(len >= 4 && strcasecmp(item->filename.get()+(len-4), ".syx") == 0);
+}
+
 void Browser::deleteFolderAndDuplicateItems(Availability instrumentAvailabilityRequirement) {
 	int32_t writeI = 0;
 	FileItem* nextItem = (FileItem*)fileItems.getElementAddress(0);
@@ -445,10 +452,14 @@ void Browser::deleteFolderAndDuplicateItems(Availability instrumentAvailabilityR
 						}
 					}
 				}
-			}
-
+			} else if (isSYXFile(nextItem)) {
+				// This is a bit of a hack, but loading every single syx file and checking the signature
+				// is going to be quite expensive.
+				//if (nextItem->filePointer.objsize >= 4096) {
+					goto deleteThisItem;
+				//}
 			// Or if next item has an Instrument, and we're just a file...
-			else if (nextItem->instrument) {
+			} else if (nextItem->instrument) {
 				if (!strcasecmp(readItem->displayName, nextItem->displayName)) { // And if same name...
 					goto deleteThisItem;
 				}
diff --git a/src/deluge/gui/ui/load/load_instrument_preset_ui.cpp b/src/deluge/gui/ui/load/load_instrument_preset_ui.cpp
index c93879eda2..76beaf50d2 100644
--- a/src/deluge/gui/ui/load/load_instrument_preset_ui.cpp
+++ b/src/deluge/gui/ui/load/load_instrument_preset_ui.cpp
@@ -314,6 +314,19 @@ static Error getRawFilePath(String* path, FileItem *item) {
 return  path->concatenate(&item->filename);
 }
 
+SoundInstrument *LoadInstrumentPresetUI::prepareForDX7(FileItem *currentFileItem) {
+	ParamManagerForTimeline newParamManager;
+	SoundInstrument* newInstrument = (SoundInstrument *)StorageManager::createNewInstrument(OutputType::SYNTH, &newParamManager);
+	newInstrument->dirPath.set(&currentDir);
+	newInstrument->syxPath.set(&currentFileItem->filename);
+	newInstrument->setupAsBlankSynth(&newParamManager, true);
+	// TODO: oldInstrumentShouldBeReplaced ??????
+	//  This is how we feed a ParamManager into the replaceInstrument() function
+	currentSong->backUpParamManager((ModControllableAudio*)newInstrument->toModControllable(), nullptr,
+									&newParamManager, true);
+	return newInstrument;
+}
+
 void LoadInstrumentPresetUI::enterKeyPress() {
 
 	FileItem* currentFileItem = getCurrentFileItem();
@@ -343,15 +356,7 @@ void LoadInstrumentPresetUI::enterKeyPress() {
 		}
 
 		// TODO: not if we currently is at a freshly loaded DX7 instrument, in case we can just modify it in place
-		ParamManagerForTimeline newParamManager;
-		SoundInstrument* newInstrument = (SoundInstrument *)StorageManager::createNewInstrument(OutputType::SYNTH, &newParamManager);
-		newInstrument->dirPath.set(&currentDir);
-		newInstrument->syxPath.set(&currentFileItem->filename);
-		newInstrument->setupAsBlankSynth(&newParamManager, true);
-		// TODO: oldInstrumentShouldBeReplaced ??????
-		//  This is how we feed a ParamManager into the replaceInstrument() function
-		currentSong->backUpParamManager((ModControllableAudio*)newInstrument->toModControllable(), nullptr,
-		                                &newParamManager, true);
+		SoundInstrument *newInstrument = prepareForDX7(currentFileItem);
 		currentSong->replaceInstrument(instrumentToReplace, newInstrument);
 		currentInstrument = newInstrument;
 		instrumentToReplace = newInstrument;
@@ -920,9 +925,17 @@ Error LoadInstrumentPresetUI::performLoad(bool doClone) {
 		return Error::NONE; // Happens if navigate over a folder's name (Instrument stays the same),
 	}
 
+	bool is_single_syx = false;
 	if (isSYXFile(currentFileItem)) {
-		// TODO: if this is a single-patch .syx file, treat it as a synth patch already
-		return Error::NONE;
+		String path;
+		getRawFilePath(&path, currentFileItem);
+		loadDxCartridgeUI.tryLoad(path.get());
+
+		if (loadDxCartridgeUI.pd->isCartridge()) {
+			return Error::NONE;
+		} else {
+			is_single_syx = true;
+		}
 	}
 
 	// then back onto that neighbouring Instrument - you'd incorrectly get a "USED" error without this line.
@@ -989,9 +1002,16 @@ Error LoadInstrumentPresetUI::performLoad(bool doClone) {
 		// Browser::checkFP();
 
 		// synth or kit
-		error = StorageManager::loadInstrumentFromFile(currentSong, instrumentClipToLoadFor, outputTypeToLoad, false,
-		                                               &newInstrument, &currentFileItem->filePointer, &enteredText,
-		                                               &currentDir);
+		if (is_single_syx) {
+			SoundInstrument *dxInstrument = prepareForDX7(currentFileItem);
+			newInstrument = dxInstrument;
+			loadDxCartridgeUI.pd->unpackProgram(dxInstrument->sources[0].dxPatch->params, 0);
+			currentFileItem->instrument = newInstrument;
+		} else {
+			error = StorageManager::loadInstrumentFromFile(currentSong, instrumentClipToLoadFor, outputTypeToLoad, false,
+														   &newInstrument, &currentFileItem->filePointer, &enteredText,
+														   &currentDir);
+		}
 
 		if (error != Error::NONE) {
 			return error;
@@ -1492,7 +1512,7 @@ PresetNavigationResult LoadInstrumentPresetUI::doPresetNavigation(int32_t offset
 	int32_t newCatalogSearchDirection = (offset >= 0) ? CATALOG_SEARCH_RIGHT : CATALOG_SEARCH_LEFT;
 readAgainWithSameOffset:
 	toReturn.error =
-	    readFileItemsForFolder(getThingName(outputType), false, allowedFileExtensionsXML, oldNameString.get(),
+	    readFileItemsForFolder(getThingName(outputType), false, allowedFileExtensionsXMLandSYX, oldNameString.get(),
 	                           FILE_ITEMS_MAX_NUM_ELEMENTS_FOR_NAVIGATION, newCatalogSearchDirection);
 
 	if (toReturn.error != Error::NONE) {
diff --git a/src/deluge/gui/ui/load/load_instrument_preset_ui.h b/src/deluge/gui/ui/load/load_instrument_preset_ui.h
index f60e856d6e..32a9f6acac 100644
--- a/src/deluge/gui/ui/load/load_instrument_preset_ui.h
+++ b/src/deluge/gui/ui/load/load_instrument_preset_ui.h
@@ -27,6 +27,7 @@
 class Instrument;
 class InstrumentClip;
 class Output;
+class SoundInstrument;
 
 class LoadInstrumentPresetUI final : public LoadUI {
 public:
@@ -92,6 +93,8 @@ class LoadInstrumentPresetUI final : public LoadUI {
 	bool isInstrumentInList(Instrument* searchInstrument, Output* list);
 	bool findUnusedSlotVariation(String* oldName, String* newName);
 
+	SoundInstrument *prepareForDX7(FileItem *currentFileItem);
+
 	InstrumentClip* instrumentClipToLoadFor; // Can be NULL - if called from Arranger.
 	Instrument* instrumentToReplace; // The Instrument that's actually successfully loaded and assigned to the Clip.