In the new documentary David Crosby: Remember My Name, filmmaker A.J. Eaton shows the legendary singer-songwriter in his twilight years, experiencing a burst of creativity and productivity that has resulted in four solo albums in his 70s (after only three solo albums in his entire career previously).

The doc also chronicles David Crosby’s notorious cantankerousness, which made his years in iconic bands The Byrds and Crosby, Stills and Nash (later Crosby, Stills, Nash and Young) so volatile. At the same time, Crosby had a hand in some of rock’s greatest songs as part of those groups, including The Byrds’ “Mr. Tambourine Man,” “Turn! Turn! Turn!” and “Eight Miles High,” and CSN(Y)’s “Our House,” “Marrakesh Express” and “Teach Your Children.”

Both bands were known for their intricate vocal harmonies, and Crosby remains one of rock’s strongest singers, whether solo or as part of an ensemble. His late-career resurgence has found him working with younger musicians, who bring extra vitality to his new material, and to the extensive library of classic songs in his repertoire. Thanks to his new albums, Crosby is busier than ever, emerging from his personal and professional troubles as a rock and roll survivor.

Red Rock Resort, 8 p.m. Sept. 13, starting at $20 plus tax and fee. 800.745.3000 Ticketmaster