Ok the short version tells you everything you need to know. But look at how the free access to information led to my making a purchase:
- Shazam (free)
- Listening to song (free)
- Identified song (free)
- Samples of other song by same band (free)
It's more simple than the humorous 3-step plan of the gnomes in South Park, it's two steps:
- Give away something for free
- Profit