Google Play Link: https://play.google.com/store/apps/details?id=xtvapps.musictrans Official Homepage: http://www.musictransapp.com MusicTrans for Android is a tool to analyze and learn to play any piece of recorded music. MusicTrans not only provides standard industry tools like tempo slow down and voice removal, but also it’s the first one to include a realtime note analyzer giving a visual representation of what is being listened at any time. This new app takes advantage of the processing power found on many of the new Android devices shipped with Android 4.0 and above, being the first one on this platform to apply an intensive signal processing and graphical analysis to provide the maximum information of how a song has been recorded. Depending on the recording, an average musician can find the key or even the chords used in the song with just looking at the screen. MusicTrans requires a powerful processor. There is a demo version in http://www.musictransapp.com that will run for a few minutes. Videos of MusicTrans running on a MotoG Phone: https://www.youtube.com/playlist?list=PLCmkRCqcyM3VkJEkoHN_hzebauDujVJlM I hope that you enjoy it!!