Free Music Downloader allows you to search, download and listen to songs is licensed as "free to use". Usage is simple - in the "Download" tab, enter your search query, click the "search" button, wait for the results to load and then click on the song you want to download. In the "Listen" tab, you can listen to all the songs downloaded using this app.
The song is downloaded to your device and can be reached directly from there, from the embedded music player or from the phone application's library of your player.
Since the music is of the authors give their music for free, you will not find any commercial music here. Please do not give negative ratings just because you do not find what you want.