Customer Relationship Management originated in business enterprise software suites like Oracle and now appears in web services for music. It refers to functions for handling interactions with fans (email database, personal details, communications, activity logs, transaction histories, complaints, etc.).It should be integrated with other platform services e.g. buying, ordering, accounting and so on.

5 Reasons to Learn Music Theory
Five good reasons why music theory is a must if you expect to perfect your musical talent.