A symphonic Dead concert

When the Baltimore Symphony Orchestra warms up a week from Friday, the musicians will be clad in their usual summer attire: white dinner jackets and bow ties for the men, white tops and black skirts or slacks for the women.

Tie-dye might be more appropriate.

On the day Jerry Garcia would have turned 66, the venerable orchestra will welcome more than 2,000 Deadheads to the Meyerhoff Symphony Hall for the world premiere of “Dead Symphony No. 6,” the first orchestral work inspired by the music of the Grateful Dead. It’s a 12-movement work by Lee Johnson that was recorded by the Russian National Orchestra in 2005 but which has never been performed live.

The approximately 50-minute performance will include a psychedelic light display.