People watch a classical concert on a floating stage on Vltava river as the spread of the coronavirus disease (COVID-19) continues in Prague, Czech Republic, September 19, 2020. REUTERS/David W Cerny

People watch a classical concert on a floating stage on Vltava river as the spread of the coronavirus disease (COVID-19) continues in Prague, Czech Republic, September 19, 2020. REUTERS/David W Cerny

People watch a classical concert on a floating stage on Vltava river as the spread of the coronavirus disease (COVID-19) continues in Prague, Czech Republic, September 19, 2020. REUTERS/David W Cerny

People watch a classical concert on a floating stage on Vltava river as the spread of the coronavirus disease (COVID-19) continues in Prague, Czech Republic, September 19, 2020. REUTERS/David W Cerny

Russian conductor Valery Gergiev and German opera singer Jonas Kaufmann are seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

A woman wearing a protective face mask attends a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

German opera singer Jonas Kaufmann gives an elbow bump with a musician of the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

German opera singer Jonas Kaufmann is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

German opera singer Jonas Kaufmann is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

Russian conductor Valery Gergiev is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

German opera singer Jonas Kaufmann is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

Russian conductor Valery Gergiev and German opera singer Jonas Kaufmann are seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

Russian conductor Valery Gergiev is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

Russian conductor Valery Gergiev is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

The Vienna Philharmonic Orchestra performs on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

The Vienna Philharmonic Orchestra performs on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People wearing protective face masks attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

A woman wearing a protective face mask and a plastic face shield attends a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

German opera singer Jonas Kaufmann is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

Russian conductor Valery Gergiev is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

The Vienna Philharmonic Orchestra performs on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

Russian conductor Valery Gergiev is seen with the Vienna Philharmonic Orchestra on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

German opera singer Jonas Kaufmann sings as the Vienna Philharmonic Orchestra performs on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

German opera singer Jonas Kaufmann sings as the Vienna Philharmonic Orchestra performs on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People attend a performance by the Vienna Philharmonic Orchestra during the Summer Night Concert at the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People arrive to attend the Vienna Philharmonic Orchestra performance on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People arrive to attend the Vienna Philharmonic Orchestra performance on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People wearing face masks take selfies before the Vienna Philharmonic Orchestra performance on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

People wearing face masks sit before the Vienna Philharmonic Orchestra performance on stage during the Summer Night Concert in the setting of Schoenbrunn Palace amid the coronavirus disease (COVID-19) outbreak in Vienna, Austria September 18, 2020. REUTERS/Lisi Niesner

A woman wears orchestra conductor Ivan Fischer's acoustic mask at the Mupa Budapest in Budapest, Hungary, September 11, 2020. Picture taken September 11, 2020. REUTERS/Bernadett Szabo

A couple wears orchestra conductor Ivan Fischer's acoustic mask at the Mupa Budapest in Budapest, Hungary, September 11, 2020. Picture taken September 11, 2020. REUTERS/Bernadett Szabo

Orchestra conductor Ivan Fischer's acoustic mask is seen at the Mupa Budapest in Budapest, Hungary, September 11, 2020. Picture taken September 11, 2020. REUTERS/Bernadett Szabo

A woman wears orchestra conductor Ivan Fischer's acoustic mask at the Mupa Budapest in Budapest, Hungary, September 11, 2020. Picture taken September 11, 2020. REUTERS/Bernadett Szabo

Orchestra conductor Ivan Fischer speaks before his concert at the Mupa Budapest in Budapest, Hungary, September 11, 2020. Picture taken September 11, 2020. REUTERS/Bernadett Szabo

A woman wears orchestra conductor Ivan Fischer's acoustic mask at the Mupa Budapest in Budapest, Hungary, September 11, 2020. Picture taken September 11, 2020. REUTERS/Bernadett Szabo

A woman wears orchestra conductor Ivan Fischer's acoustic mask at the Mupa Budapest in Budapest, Hungary, September 11, 2020. Picture taken September 11, 2020. REUTERS/Bernadett Szabo

Production crew and a temple custodian set up an altar in the set of a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

A roster of live streaming getai shows is pictured at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai veteran Wang Lei says a few words to his fans online before a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai veterans Wang Lei and Liu Ling Ling (L) offer prayers at an altar before a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai veteran Wang Lei prepares to go on a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai veteran Liu Ling Ling prepares for a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai singers wait in the dressing room to perform at a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai singers Leon Lim, Wang Lei and Liu Ling Ling perform a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Live comments from viewers are displayed on a screen as getai Singapore Febe Huang and Leon Lim perform at a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Director Pang Kok Choy edits and operates cameras in the back room during a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai singer Sam Loo's outfit is pictured before a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Temple members, relatives and friends of getai singers watch a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Crew members monitor the live streaming of a getai show on social media platforms at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Lex(s) Entertainment's getai organiser Aaron Tan offers incense backstage before a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Getai veteran Wang Lei walks to change into his costume before a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Director Pang Kok Choy edits and operates cameras in the back room during a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su

Production crew and a temple custodian set up an altar in the set of a live streaming getai show at a studio in Singapore September 5, 2020. The coronavirus disease (COVID-19) outbreak has prompted Getais, or free concerts that are traditionally staged outdoors for the living and the dead during the Hungry Ghost Festival, to go virtual. Picture taken September 5, 2020. REUTERS/Edgar Su