The printing press and the Industrial Revolution.
Both Indian music and jazz have melodies based on modes, (scales or ragas), pulse-oriented rhythms, (played by drums) and improvisation, all of which have been developed to a very high level.
i write sins not tragidies and smile. they are different the intensity in smile is way more then the other song. i write sins not tragidies has more musical scales. lastly the melody of i write sins not tragidies is way more angry. hope this helps