Perhaps the best example you can quote for music transcending all barriers of language is the hit song 'Why this Kolaveri di'. Though it is a mix of Tamil and English, the song became a global sensation and the man behind that was Anirudh Ravichander...
The world of music directors is currently flooded because the presence of talented musicians is too high. At the same time, if you can come up with one single number that can go viral then you become a sensation overnight....
We are living in a world where a small video made at the other corner of the world is available to you in few seconds and it can go viral within minutes. That's the power of internet and social media....
You would have heard many times on how we speak about one film that change the fortunes of a hero. In fact, the same is now applying these days even to the music directors....