Bob Dylan in 2015

Bob Dylan speaks onstage at the 25th anniversary MusiCares 2015 Person Of The Year Gala at the Los Angeles Convention Center on Feb. 6, 2015 in Los Angeles.

Michael Kovac/WireImage

Part of music icon Bob Dylan's once-secret 6,000-piece archive, including thousands of hours of studio sessions, film reels and caches of unpublished lyrics, has opened in Oklahoma.

More than 1,000 pieces of the collection spanning Dylan's six-decade career are available to scholars at the Gilcrease Museum's Helmerich Center for American Research in Tulsa.

The opening comes a year after the George Kaiser Family Foundation and the University of Tulsa acquired the collection for an estimated $15 million to $20 million.

The public will get a glimpse of some of the material when the Bob Dylan Center opens in downtown Tulsa's Brady Arts District in about two years.

The center will occupy the opposite side of a building that houses a center devoted to Woody Guthrie, one of Dylan's major influences.

This article was originally published by The Hollywood Reporter.