Forty-plus female-led acts will gig at over a dozen venues in Milford on Saturday, Sept. 22.

The Ladybug Music Festival offers something you rarely see in the male-dominated music space: a free festival featuring predominantly female artists.

First launched in Wilmington in 2013 by Gable Music Ventures, this year marks the first where Ladybug comes to Milford. Unlike the Wilmington festival, Milford’s will be one day, not two.

More than 40 female-led acts will perform at over a dozen venues in downtown Milford on Saturday, Sept. 22, mainly on Walnut Street.

The New Jersey twin-sister duo Nalani & Sarina brought their soulful rock and pop sound to Wilmington for the sixth annual Ladybug Festival this past July, where they headlined the first day. The twins have played four of the last five Ladybug festivals.

Nalani & Sarina, who are on the road with their new album called “The Circle,” will rock out on the main stage this weekend.

What’s a twin question you get tired of answering?

Nalani: “How long have you guys been twins?”

Sarina: Another one we get asked a lot is, “Do you guys feel each other’s pain?” and “Do you guys actually finish each other’s sentences or read each other’s minds?”

Have you noticed that a lot of twins are usually the same weight?

Nalani: We went to school with over 20 sets of twins in our high school. I think our middle school had 17 sets of twins. I think there was something in the water. There’s so many different types of twins. Ther e were boy-girl twins, girl-girl, boy-boy. Pretty much every type of twin you could come across, we had it. There were ones that were different sizes, identical and nonidentical.

Sarina: There were a lot of twins that actually hated each other. We found that interesting because we were always so close, from day one.

What’s been your experience at the Ladybug Festival?

Nalani: Each year at the festival has been really cool because we’d start playing to more people, and more people would be interested in catching our show. We really tried to grow there, because we felt the people who were truly paying attention were true music lovers, which is why we always come back to Wilmington.

How does the festival compare to others you play?

Sarina: There’s so many other festivals where there’s a huge lack of female performers. That’s a big issue. If you look at some of the big-time festivals like Bonnaroo, SXSW and Firefly, there were maybe two females who were headliners. You don’t even realize it until you look at the facts. I think that’s across the board in multiple shows we play. There aren’t as many females in the game. So for Gable to literally do an entire festival based solely around females, and females of all different types of genres, we think it’s just so cool they’re bringing that issue to the forefront. So any way we can support that, we’re all for it.

Why do you think male artists overpower women in major music festivals?

Nalani: It could be about what happens behind the scenes. There’s a lack of female performers, especially live performers who use instruments. Also, look at it behind the scenes. If you’re going to look at people who are higher up in the music industry, there’s a lack of females in those positions. So you never know. It could be a combination of things. But it’s another aspect of this issue that needs to be noted.

Sarina: We have an older sister who’s in film school right now, and it’s the same thing in her market: very few women are showcased, who are equally as talented as men, if not more. I feel like slowly we’re all picking up on this and our hope is to be able to change that.