The document discusses how globalization has impacted the genre of rock music. It explores how styles have blended as music travels faster through digital means. This has led to genre ambiguity as rock incorporates diverse influences. While some see this as threatening rock's authenticity, others argue that music itself enables globalization by communicating complex ideas and emotions across cultures. The homogenization of styles through isomorphism and hybridization has made it difficult to define rock as a genre. However, assessing authenticity based on artistic passion versus commercial motives remains one way to categorize music.