This application listens to music from the radio or television and analysis to find what is the title of the musical work. The only drawback is that not shazam references on youtube if you want to listen to that music again so it will buy enough damage, that's why I put 4 on 5. To download you must have at least one device on android 4.0, if you have a higher version you can download the android.
This application is very convenient, everyone should already have it.