industry to re-examine the definitions of intellectual property and the rights of all the parties involved. Also compounding the issue of defining copyright boundaries is the fact that the definition of "royalty" and "copyright" varies from country to country and region to region, which changes the terms of some of these business relationships. After 15 or so years of the Internet economy, the digital music industry platforms like iTunes, Spotify, and Google Play are major improvements over the early illegal file sharing days. However, the multitude of service offerings and revenue models make it difficult to understand the true value of each and what they can deliver for musicians and music companies. As well, there are major transparency problems throughout the music industry caused by outdated technology. With the emerging of new business models as streaming platforms, and online music services, a large amount of data is processed. Access to big data may increase transparency in the industry. History of printed music and recorded music Early history: Printed music in Europe Music publishing using machine-printed sheet music developed during the Renaissance music era in the mid-15th century. The development of music publication followed the evolution of printing technologies that were first developed for printing regular books. After the mid-15th century, mechanical techniques for printing sheet music were first developed. The earliest example, a set of liturgical chants, dates from about 1465, shortly after the Gutenberg Bible was printed. Prior to this time, music had to be copied out by hand. To copy music notation by hand was a very costly, labor-intensive, and time-consuming process, so it was usually undertaken only by monks and priests seeking to preserve sacred music for the church. The few collections of secular (non-religious) music that are extant were commissioned and owned by wealthy aristocrats. Examples include the Squarcialupi Codex of Italian Trecento music and the Chantilly Codex of French Ars subtilior music. The use of printing enabled sheet music to reproduced much more quickly and at a much lower cost than hand-copying music notation. This helped musical styles to spread to other cities and countries more quickly, and it also enabled music to be spread to more distant areas. Before the invention of music printing, a composer's music might only be known in the city she lived in and its surrounding towns, because only wealthy aristocrats would be able to afford to have hand copies