Rah Rah's new album Vessels drops today

Indierock band Rah Rah is setto release its fourth full-length album on Friday. MembersMarshall Burnsand Erin Passmoreboth sayVesselsis an evolution in their music writing.

The pair sat down withThe Morning Editionhost Sheila Coles to talk about their new album.

Burns saidthe things he writes about are "always changing."

"What's on your mind when you're 19 is different from when you're 26," he said.

Among the new album's themesare memory and nostalgia.

"I think mostwriters would agree: you can't dissociate one event from the next," he said. "Your entire life experience sort of culminates into a song. You live a little bit more, then your life experienceculminatesinto the next song."

Passmore saidVessels and 2012'sThe Poet's Deadtaught the musicians to let go of their egos.

She describedsongwriting asa form of therapy:"cultivating this honest vulnerability, and being okay with that. Andbeing out in the open."

"Taking that stepwith writing is a big step for me;you'rebeing honest with yourself, 100 per cent," she said.

Passmore said she did that for tracksFix meandSurgeryon the new album.

"[Fix me] is pretty personal. It's about me feeling crazy a lot. But being really self-aware of how crazy you're coming off to other people," she said.

"Surgery is not about me, but looking at how you need to cut the badness out. Whether it's friends or relationships in your life, not really doing any good for yourself. It's gotta go."

The release party forVesselsis set for Sept. 11 in Toronto is at the Horseshoe Tavern at 9:00 p.m. EDT.

After that, the band takes off on tour with Vancouver-based Dear Rouge. The tour include showsin Canada, the U.S. and throughout Europe.