The $775m bid to bring an AFL team to Tasmania will place the stateâs symphony orchestra in an unenviable world-first position, which could threaten its future existence.
The plan to build a home for the newly formed Tasmania Devils AFL team will see a 23,000-seat sports and music stadium constructed on a historic Hobart foreshore site just 40 metres from the Tasmanian Symphony Orchestraâs purpose-built performing and recording headquarters, the Federation Concert Hall.
The TSO has commissioned two independent acoustic reports in the past 12 months. Both reports, seen by Guardian Australia, warn greater measures will be needed to address the potential for sound spill and reverberation into the concert hall during construction â set to begin next year â and once operating from 2029.
The orchestraâs chief executive, Caroline Sharpen, said there were major inadequately addressed issues in the Macquarie Point multipurpose stadium development application now before the Tasmanian Planning Commission for assessment.
âThereâs no precedent in the world that we know of for a concert hall having a 23,000-people stadium 170 metres from its stage,â Sharpen said.
âThere are still too many unanswered questions, particularly around noise and vibration and the ability of the existing concert hall to be able to buffer those without impairing any of our performance, recording or filming activities.â
Sharpen said the stadium proposal relied heavily on âmanagement mitigationâ â such as coming to an agreement with the AFL over scheduling to avoid a conflict of events â rather than prevention at the source.
âThis is problematic because management mitigation needs to be by mutual agreement â and we canât predict ongoing relations between the AFL and the TSO,â she said.
âWe can predict that the AFL wonât negotiate.â
The 75-year-old orchestra performs hundreds of concerts across Tasmania each year, including in its purpose-built home on Hobartâs waterfront.
When not performing, Sharpen said the concert hall was in use seven days and six nights a week for the TSOâs extensive recording, rehearsal, filming and livestream activities, which reach more than 6 million online and radio listeners annually, making it the most recorded, broadcast and streamed orchestra in the country.
According to the stadiumâs developer, the Tasmanian government, the stadium is expected to host between 36 and 51 major events each year once operational.
In the past two years the concert hall has undergone a $1.3m acoustic and digital recording upgrade.
Generating $14m a year in revenue, it is considered Tasmaniaâs No 1 cultural export. But Sharpen said she had not been able to secure meetings with senior ministers to discuss the orchestraâs fate in the face of the AFL juggernaut, and the state arts minister, Madeleine Ogilvie, had only given vague assurances the noise and vibration problems would be âengineered awayâ.
A state government spokesperson said the planning commissionâs assessment would include public consultation with key stakeholders including the TSO. They said Stadiums Tasmania would negotiate event planning with the new stadiumâs neighbours.
âWe also expect works on site will continue as they have to date, with noise and vibration monitoring and liaison with the TSO to minimise impact on key events,â the spokesperson said.
In a statement, the AFL did not address the concerns raised by the TSO, saying only that the new Tasmania Devils club had signed up more than 200,000 members and the stadium development was continuing to make âgreat progressâ.
As a state-significant project, the stadiumâs plans must be approved by both houses of parliament. The Labor opposition has indicated it will support the development.
According to the development application, the Federation Concert Hall is expected to experience levels of sound spill from crowd noise, game sirens, PA systems and live music of between 49 and 75 decibels.
Sharpen said the latest report prepared has warned that low frequency (bass) music sounds emanating from the stadiumâs loudspeakers from advertising and entertainment will be the hardest to mitigate.
âThese sounds tend to travel through the earth, and the vibration comes through into the concert hall,â she said.
Sharpen stressed that the TSO was supportive of the Tasmania Devils getting a home and she is an AFL fan (her brother Jeremy Sharpen played for Collingwood in the late 1990s) but the orchestra is now joining a growing number of Tasmanians objecting not to having an AFL stadium but to the governmentâs choice of site.
On Thursday the orchestra will hold a joint announcement with the Tasmanian RSL, which has already voiced its opposition to the location.
The two organisations will announce a 10 November vigil and free concert at Hobartâs cenotaph to protest against the development.
The RSLâs objection centres on the 54-metre high stadium dome which will intrude on the sightlines of the cenotaph, Australiaâs oldest war memorial.
The RSLâs chief executive, John Hardy, said the layout of the Hobart memorial had been designed after the first world war to incorporate two significant landmarks â the Derwent River and St Georgeâs Church, where many of those servicemen had been baptised or married.
The render designs provided in the development application by Cox Architecture show the stadiumâs dome will become a defining feature of Anzac Dayâs dawn ceremonies in Hobart.
The RSL appears to have higher access to government than the TSO, with Hardy saying he had met the premier and the veteranâs affairs minister to lobby for a location change.
âIâve had [politicians] say, âWeâd never disrespect the RSL or disrespect the cenotaphâ â but they are because theyâre building something right by it,â he said.
The extent of the governmentâs âclear lack of understandingâ of the cenotaphâs significance was evident in the development application, Hardy said. When addressing the sightline issue from the cenotaph, the report states that the view is blocked by vegetation.
The vegetation in question is a towering poplar tree bearing a soldierâs name at its base.
âItâs part of the essence of the cenotaph,â the RSL chief executive said. âThe Tasmanian government will be the first Australian parliament to ever reduce, degrade and disrespect its own cenotaph by building around it. No other government has ever done that.â
The Liberal minority government said the premier and veteran affairs minister would continue to consult with the RSL.
âWe understand the RSL has concerns and that there are also differing views in the veteran community,â a spokesperson said on Thursday.
The government said there would be viewing areas within the stadium where people could see the cenotaph. But Hardy said a âpay for viewâ approach to a war memorial was unacceptable.