THREE long years have passed since Brisbane progressive rock innovators Dead Letter Circus released their debut album This Is A Warning.
The band has since gained international fame and chart hits and lost founding sound-moulding guitarist Rob Maric.
The group's sophomore release The Catalyst Fire was dropped on August 9 and has punched heavy holes through the group's former, softer, sound - according to bassist Stewart Hill.
Hill said the band's adoption of new guitarist Clint Vincent did not leave them stuck for inspiration with The Catalyst Fire.
"This time we just kind of let loose, we paid more attention and got to do our thing a bit more I think - moving away from that tight staccato thing that's all through This Is A Warning," he said.
"The friends have loved it, they're getting more excited than we are, it's cool."
Dead Letter last year paved new ground for Australian progressive music, bringing their sound to fresh audiences by touring alongside bands such as the US's Animals As Leaders.
Hill said the experience made the group work harder on refining its live sound and song-writing production.
"I think because they [Animals as Leaders] were just so inspirational, as you already know, it just made us practice a lot more and also think in a heavier mindset I guess," he said.
"The end product is a lot heavier than This is a Warning, yet at the same time it's still sounding like Dead Letter Circus. It has all those flavourings that we have, it just has more balls, more angst."
However, the band's serious edge isn't riddled entirely through its approach to music, as Hill explains the true naming process for their song titles.
"When we work on the songs we have working titles, for instance the song I Am (track five on The Catalyse Fire) used to be called, well, the working title was called `Spider Turkey'," he laughed.
"Because, well, the spider part came with the bass line through the middle and when it first kind of popped out my left hand resembled a spider, but it also made you move your head like a turkey that had just smelt a fart - so yeah, it was coined `Spider Turkey', there's a bit of insight."Hill said Dead Letter Circus would tour Australia in August and September before playing shows in Africa, UK and Europe.