After an August 24 concert with Judy Collins, folk-pop songstress Dar Williams will be ready to hit the road for the fall leg of her U.S. tour. The next set of performances begins September 12 in Somerville, MA, and concludes with shows on November 7 and 8 in Alexandria, VA. Grammy nominated Shawn Mullins will be the main support for the tour.

The 24-date tour of theaters and performance halls will take Williams from coast to coast in support of “Promised Land,” her first studio album of original material in more than three years. The effort is scheduled for pre-tour release on September 9.

Williams, who is known for her intelligent songwriting and storytelling, has described the new album as a departure from her usual work. “On this one, I was paring the stories down to their core,” she noted on her Web site. “I wanted the songs to sound simple and down to what they were meant to be, which is hard to do. It takes a lot of knowledge to get to the point where you can say what you need to say — no more, no less.”

The New York native got her start in the Boston music scene when she moved to the city to pursue a career in theater. After picking up a guitar and penning some lyrics in the early ’90s, Williams released her debut “The Honesty Room” in 1993. In all, she has released ten studio albums, including the eponymous record from her cover song side project, Cry Cry Cry.

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Shawn Mullins is currently scheduled to appear with Williams for all dates through September. He is best known for his 1998 single “Lullaby,” which received a Grammy nomination for Best Song. Mullins debuted in 1991 with “Everchanging World,” and has released 12 albums in all. On March 11 he released “Honeydew,” which he has been supporting on his own tour dates.

Dar Williams itinerary:
(Dates subject to change.)

August 24 Jacksonville, OR Britt Pavilion *
September 12 Somerville, MA Somerville Theatre
September 13 Albany, NY The Egg – Swyer Theatre
September 15 Pittsburgh, PA Club Cafe
September 16 Cleveland, OH Beachland Ballroom and Tavern
September 17 Ann Arbor, MI The Ark
September 19 Chicago, IL Park West
September 20 Indianapolis, IN The Vogue
September 21 Milwaukee, WI Pabst Theatre
September 22 Minneapolis, MN Guthrie Theater
September 23 Iowa City, IA Englert Civic Theatre
September 25 Covington, KY Carnegie Visual and Performing Arts Center
September 26 Buffalo, NY Asbury Hall
September 27 New York, NY The Fillmore New York at Irving Plaza
October 1 Portland, ME One Longfellow Square
October 2 Woodstock, VT Town Hall Theatre
October 3 Great Barrington, MA Mahaiwe Performing Arts Center
October 4 Mamaroneck, NY Emelin Theatre
October 14 Boulder, CO Boulder Theater
October 17 Seattle, WA Moore Theatre
October 18 Eugene, OR John G. Shedd Institute for the Arts
October 22 San Francisco, CA Great American Mic Hall
October 23 Los Angeles, CA The El Rey Theatre
November 7-8 Alexandria, VA Birchmere

* with Judy Collins