The Liceu Opera of Barcelona opened Monday for its first concert since March amid the coronavirus pandemic, with musicians playing for a packed audience of plants. 

The Gran Teatre del Liceu filled all 2,292 of its seats with a sea of plants for a live-broadcast string quartet performance of Giacomo Puccini's "Crisantemi" in a prelude to its 2020-2021 season.

"After a strange, painful period, the creator, the Liceu's artistic director and the curator Blanca de la Torre offer us a different perspective for our return to activity, a perspective that brings us closer to something as essential as our relationship with nature," the Liceu said in a Monday statement.

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The opera hall said it “welcomes and leads a highly symbolic act that defends the value of art, music and nature as a letter of introduction to our return to activity.”

Following the concert, the plants are each being donated with a certificate to 2,292 people who have been "on the healthcare frontlines, the toughest front in a battle unprecedented for our generations, in recognition of their work,” the Liceu said.

Spain on Sunday ended a national state of emergency over the coronavirus pandemic that had been in place for three months, NPR reported. Theaters, cinemas and other entertainment venues will be able to reopen with new restrictions on capacity.

The country announced last month that it will begin to reopen to international tourists in July and end a mandatory two-week quarantine policy for travelers entering its borders.

Spain has 246,504 total confirmed coronavirus cases as of Tuesday morning, in addition to more than 28,000 fatalities, The New York Times reported.