BANGOR – Do you know fado? Do you like tip-top hip-hop? How about polka – with a twang?

You can hear it all at this summer’s National Folk Festival, and more. Festival committee chairman John Rohman on Friday announced eight additions to the performance lineup for the event, set for Aug. 23-25 on the city’s waterfront. Rohman also announced a $50,000 donation by KeyBank for the first year of the festival, which will call Bangor home for three consecutive summers.

“The $50,000 is for year one, which is really nice because our expenses are higher for the first year,” Rohman said. “It’s very important for us.”

KeyBank’s contribution brings the festival that much closer to its fund-raising goal of $1.8 million. To date, more than $1.2 million has been raised through a National Endowment for the Arts grant, and corporate and private donations. Of the $1.8 million, about $800,000 is needed in the first year to get things up and running. The festival has raised more than $500,000 toward that goal, including the KeyBank donation.

“We see this as an opportunity to assist with the economic development of the region while providing a wonderful cultural experience for the community,” said Charles Osgood, area president of KeyBank’s eastern and northern Maine division.

That cultural experience will include more than 20 artists on five stages. Eight new performers were announced Friday, which shows the festival’s commitment to diversity.

“Really, it’s a very conscious effort to represent a broad range of cultural forms and musical forms to be found in our country,” Julia Olin of the National Council for the Traditional Arts said by phone Friday. “The richness and variety of our culture are what makes our country so interesting.”

The acts highlight that variety. The Bluegrass Tradition, a family ensemble from Virginia, recently was named the best bluegrass band at the Galax Old Time Fiddler’s Convention. Brian Marshall & His Tex-Slavic Playboys combine Polish polka with Texas swing in their waltzes, polkas and two-steps.

Ana Vinagre hails from New Bedford, Mass., home of one of the country’s largest Portuguese communities. She specializes in Fado, a traditional Portuguese song form that has at its emotional core a yearning or nostalgia for love, times past, or a lost home.

The Treme Brass Band is steeped in the New Orleans neighborhood music scene. The band plays regularly at traditional funerals, club parades and street parades in New Orleans.

NBS, short for Nothing But Skill, is an energetic group of hip-hop dancers and percussionists from New York City featuring acrobatic dancers, a DJ and a bucket drummer. In contrast, Mary Jane Lamond of Cape Breton Island combines tradition and innovation in her songs, based on the island’s rich Scottish heritage.

The Upland South and Heartland Fiddlers, three master fiddlers from Tennessee, Virginia and Missouri, will play forceful, danceable tunes, while Gilles Roy and the Steppin’ Ambassadors will tap their toes in the Ottawa valley style of step dancing.

Maine’s proximity to Canada is one of the reasons why Bangor was chosen to host the festival, which spent the last three years in East Lansing, Mich. Festival organizers hope to expose audiences to regional folk styles they may never have the chance to see otherwise.

“These all are part of the fascinating fabric of American life and that’s what The National is all about,” Olin said.