You are downloading the mMusic XAP file v188.8.131.52 for Windows Phone. mMusic is a free and useful Music app: "mMusic" is Vietnamese application. The application is not in the targeted English. The primary content of this application is in Vietnamese! ... You can now download the offline XAP file to install & try it.
Download Locations for mMusic 184.108.40.206 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline mMusic XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.