Pupils from Priory School, in Southsea, helped a team from the University of Portsmouth put the huge wooden structure together in the underpass at the junction of Victoria Road North and Holbrook Road, Somers Town.
It was the idea of architect Guido Robazzo, who led the two teams on the project. Together they built a wooden frame full of musical instruments
made from recycled material.
The installation plays sounds as people walk around it and interact with it.
The structure will be in place for six months and was jointly funded by Portsmouth City Council and the university.
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