You are downloading the VirtualGuitar XAP file v22.214.171.124 for Windows Phone. VirtualGuitar is a free and fun Music game: Play electric and classic guitar with your phone! Fixed minor ... You can now download the offline XAP file to install & try it.
Download Locations for VirtualGuitar 126.96.36.199 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline VirtualGuitar XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.