Extract text from Expressive music files (XMU)
To convert XMU music files to another format, you need sonaBuilder or other Audio software.
To convert other file formats to the "Interactive Music Container" file type, you need software like sonaBuilder or a similar tool.
The .XMU file extension is primarily used as an Expressive Music Container File, developed by the audio technology company Sonation. These files serve as interactive musical scores, designed to synchronize pre-recorded orchestral accompaniment tracks with the live performance of a solo musician.
Historically, .XMU files were authored using sonaBuilder for macOS and played back using the Cadenza mobile application. Cadenza would utilize the device's microphone to listen to the live musician's tempo, dynamically adjusting the playback speed of the .XMU audio data in real-time to match the performer.
The major disadvantage of the .XMU format is its highly proprietary nature. Because it acts as a closed software container rather than a standard audio file, it is completely unsupported by standard media players, modern Digital Audio Workstations (DAWs), or web browsers. The format relies heavily on a specialized software ecosystem that is largely inaccessible today, effectively locking your audio inside a proprietary package.
To actually listen to the audio trapped inside an .XMU container, you must convert it to a standard audio format like MP3, WAV, or OGG. However, note that exporting to these standard formats permanently strips away the interactive tempo-mapping metadata. You will successfully recover the high-quality audio, but it will be flattened into a static, non-interactive backing track.
Because this format is essentially an abandoned, closed-ecosystem container, standard online converters completely fail to process it. We will inspect the proprietary container, and if our deep analysis detects supported underlying or embedded audio streams, viewing or conversion may still be possible.
Convert.Guru analyzes your XMU file, detects the exact format, and lets you read the text inside.
If you want to convert XMU file to , you can use sonaBuilder or similar software from the "Interactive Music Accompaniment" category. In the File menu, look for Save As… or Export….
To convert files to XMU, try sonaBuilder or another comparable tool in the "Interactive Music Accompaniment" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our XMU converter.