The recording, which would have been legal to make without one party’s consent under both New York and Texas state laws, offers an unprecedented view into how thousands of concert tickets for major tours have been sold first on the secondary market — where resellers can mark up prices — without being offered to the public at face value. It also shows the extent to which the rise of online ticket sites has put pressure on artists and promoters to capture more of the profits resellers are making — and how Live Nation is uniquely positioned to help solve the problem, as the owner of the world’s biggest ticketing platform that even its rivals use.