Word clouds are intriguing little tools that effectively allow you to look at the frequency distribution of words within a given piece of text. Wofram Alpha the way clever search engine has just released a new function allowing you to generate word clouds for the lyrics of your favourite songs. you simply enter the expression word cloud into the search bar followed by the title of the song you are after . For example the cloud below is from London calling by the Clash. to generate it I simply entered word cloud London Calling.
I have no idea what use it might be but it does pass some time.