According to a preliminary result before the votes are fully counted, 66.4 percent of the voters support the use of tax money to finance next year's European Championship Song Contest.
The Swiss Nemo won the European Championship Song Contest in Malmö in May and the idea is to hold next year's competition in Basel.
The canton has already approved economic guarantees of 37.5 million Swiss francs, equivalent to approximately 450 million Swedish kronor.
But the Christian right-wing party EDU has requested a referendum to stop the economic support, which would mean that the arrangement would have to be significantly scaled back.
