You are downloading the Air Guitar XAP file v188.8.131.52 for Windows Phone. Air Guitar is a free and useful Entertainment app: Air Guitar lets you rock out with your Windows Phone and Windows Tablet! You can pretend like you're a rock legend or the next big thing! You can ... You can now download the offline XAP file to install & try it.
Download Locations for Air Guitar 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 Air Guitar XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.