A free app for Android, by Delphinus Media.

Tamil Old Songs is the most loved app for Tamil Music Lovers. The app contains a collection of over 1000 Tamil Songs, all of which are carefully selected, arranged, and categorized in different categories. It offers you a great listening experience with a clean interface and great sound quality. It’s easy to use, and you can choose to listen to your favorite songs in the background while you do other things.

All of the songs are in the public domain and are available under Creative Commons licenses. You can choose to download them in various formats and then listen to them in the background while you do other things.