Bob Dylan’s recordings have reached the end of the line. Sony Music Entertainment announced Monday that it had purchased the rights to all music recorded by the 80-year-old rock and folk star. That acquisition of Dylan’s recordings also includes “the rights to multiple future releases,” Sony said in a press release. That music dates back 60 years beginning with his eponymous LP made up mostly of folk standards, but featuring two original tunes, one of which was titled “Talkin’ New York.” Sony gave no dollar amount in Monday’s announcement. Estimates put the value of publishing rights to his mo…