Melodic "oohs" and "aahs" can be heard coming from the house, backed by guitars and, later, drums.
It's not a belated celebration, nor is it a house party which will carry on into the wee hours to the ire of surrounding residents.
It's The Lynch Mob, hard at work in their first rehearsal ahead of this month's first public performance of Pink Floyd's iconic concept album Dark Side of the Moon.
The lounge has been transformed, with couches pushed back against the wall making room for microphones, drum kits and associated musical equipment and a television taking centre stage as The Lynch Mob study the on-screen action to perfect the tricky ending for Time.
The oohing and aahing carries on for some time, working on the vocals for two talented young singers who have been asked to perform backing vocals for the Arrowtown family band.
Sixteen-year-olds Emily Burns and Molly Devine, both pupils at Wakatipu High School and both fresh out of performing in Showbiz Queenstown's season of Les Miserables - Cossette for Emily and the chorus for Molly - are clearly in awe of the band founded by Kevin Lynch, who died last year.
Both girls were standout performers at Big Break '09 and the opportunity to perform with The Lynch Mob was not one they could turn down.
The band first performed Dark Side of the Moon at a "private party for 500 people" at Peregrine last year.
"I watched them at the Peregrine show. After that I told them how amazing I thought they all were," Molly said.
It wasn't long before the girls got the call up from the band, asking them to perform in The Great Gig at Memorial Hall.
"I'm really excited," Emily said.
"They're all just amazing. They're so professional."
While Emily sees her future on stage, Molly - just like the classic Beatles song Ob-la-di Ob-la-da - is a singer in a band and that's the way she likes it.
Lynch Mob vocalist Emma Pullar said the idea for the Memorial Hall performance came after a private performance at The Willows in Arrowtown at Anzac weekend, which attracted about 400 people.
"We thought why not? Let's do it.
"We were talking with John and Ann Mann [of MannMade Events] - [The Great Gig in the Hall] is not one of the official Winter Festival events; it's part of the Mann's events.
"They had a couple of spare nights and we had a show," Mrs Pullar said.
However, this performance of Dark Side of the Moon promised to be a "truly memorable night" with the band pulling out all the stops for the one-off event.
In addition to Emily and Molly, about 30 Queenstown Primary School pupils, aged 9 and 10, would be joining the band on stage for the finale - Brick in the Wall.
Drummer Marc Hamilton - a recent contestant on TVNZ's Stars In Their Eyes - was the school's music teacher, so enlisted the help of the children to pull off the "full production" they had planned.
"TomTom productions are supplying all the sound, lights, visual effects - we're trying to secure on-stage pyro as well.
"It's going to be a full production."
• Tickets for the June 28 event are available for $20 from Ticketek, with doors opening at 7pm and the show beginning at 8pm.
