You are downloading the Piano Companion XAP file v18.104.22.168 for Windows Phone. Piano Companion is a free and useful Music app: Piano Companion is a flexible chord & scale dictionary with user libraries and reverse mode. Piano Companion allows you to find a chord or scale ... You can now download the offline XAP file to install & try it.
Download Locations for Piano Companion 22.214.171.124 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Piano Companion XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.