Jim Lucchese, CEO of The Echo Nest discusses the world of music indexing, search and mash-up software. He explains his company’s business model, which is dedicated to enabling the searchability of every music file and piece of information about music on the Web, and how a combination of software engineers and well-designed software are working together to index this massive amount of content. He also addresses some of the copyright and licensing issues that affect the distribution of music online, explains how various types of music recommendation engines work, shares hints for musicians on using services like The Echo Nest to further their careers