SGU File Extension

Band-in-a-Box MIDI
- File Type sgu
- Developer PG Music Inc.
- Popularity
- Application MuseScore
- Category Audio Files
What is a SGU file?
The SGU extension is related to Band-in-a-Box MIDI and is classified in the Audio Files category, which contains 667 files.
With the creation of the Band-in-a-Box MIDI (SGU), PG Music introduced file format along with programs built for their use.
SGU files are compatible with various operating systems, including Mac OS, Linux and Windows. You can open a SGU file using one of 2 programs, for example Band-in-a-Box and MuseScore.
Programs that support SGU files
How to open a SGU file?
The most common reason why a SGU file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
Band-in-a-Box and MuseScore are among the most widely used programs for handling SGU files. If you wish to install the latest release of MuseScore, visit the official Werner Schweer portal and download the edition that works on any operating system.
Following installation, SGU files should be automatically opened with MuseScore.
Set MuseScore as the default SGU application
Change the default app that opens a file on Mac
- Right-click or use Control + Left-click on the desired SGU file to open a menu where you can choose from multiple actions;
- Choose "Open in Application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to MuseScore. Check the box next to "Always open in app" to make sure it’s the default option.
Change default programs in Windows
- Start the process by right-clicking on your SGU file and selecting "Open With". From there, click "Choose another app" to continue;
- From the options listed in the pop-up window, specifically choose MuseScore as the application to handle your SGU file;
- Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.
How to edit a SGU file?
To modify SGU files, it is necessary to install dedicated software that lets you open and edit audio files. Online SGU editors generally offer fewer tools compared to programs designed for Band-in-a-Box MIDI.
Best SGU Editor Software in 2026
Taking into account the provided details, we have prepared a list of SGU editors that match your needs.
| SGU Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Band-in-a-Box | PG Music | Windows, Mac OS, Linux | 4.4 out of 5 (41 review) |
Convert files to and from SGU
If a SGU file is cumbersome, converting it to formats such as MP3 or other supported types can make it easier to manage.
It is important to understand that converting a SGU file might limit certain functions, but this conversion is usually reversible.
Convert SGU to other file formats
Converting Files to SGU Format
Troubleshooting guide for SGU file complications
When issues arise with SGU files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What are the possible solutions to recover a corrupt SGU file?
Start a recovery program, open the damaged SGU file and then select the "Repair" menu item to start the repair procedure. Wait for the recovery process to finish, allowing automatic repair of damaged audio files.
How can I confirm if my SGU file has been damaged?
The signs of corrupted SGU audio files can manifest as:
- The file shows slow performance when edited in Band-in-a-Box;
- The file stops responding or freezes in MuseScore or other programs;
- The file does not respond or shows errors when opening it;
- Unexplained SGU file size inflation;
- The file operation is accompanied by the display of error messages;
What are the possible causes of MuseScore crashing?
Lack of regular software updates can cause MuseScore to crash. Make sure you have installed the latest updates for Werner Schweer products.
Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.





