People wear protective masks to prevent the spread of the coronavirus disease (COVID-19) while using a mobile phone after attending a music concert at National Concert Hall in Taipei, Taiwan, November 11, 2020. REUTERS/Ann Wang

People wear protective masks to prevent the spread of the coronavirus disease (COVID-19) while attending a music concert at National Concert Hall in Taipei, Taiwan, November 11, 2020. REUTERS/Ann Wang

People wear protective masks to prevent the spread of the coronavirus disease (COVID-19) while attending a music concert at National Concert Hall in Taipei, Taiwan, November 11, 2020. REUTERS/Ann Wang

Jon Bon Jovi reacts during a drive-in campaign event of U.S. Democratic presidential candidate Joe Biden at Dallas High School in Dallas, Pennsylvania, U.S., October 24, 2020. REUTERS/Kevin Lamarque

Jon Bon Jovi performs during a drive-in campaign event of U.S. Democratic presidential candidate Joe Biden at Dallas High School in Dallas, Pennsylvania, U.S., October 24, 2020. REUTERS/Kevin Lamarque

Jon Bon Jovi reacts during a drive-in campaign event of U.S. Democratic presidential candidate Joe Biden at Dallas High School in Dallas, Pennsylvania, U.S., October 24, 2020. REUTERS/Kevin Lamarque

Jon Bon Jovi performs during a drive-in campaign event of U.S. Democratic presidential candidate Joe Biden at Dallas High School in Dallas, Pennsylvania, U.S., October 24, 2020. REUTERS/Kevin Lamarque

Jon Bon Jovi performs during a drive-in campaign event of U.S. Democratic presidential candidate Joe Biden at Dallas High School in Dallas, Pennsylvania, U.S., October 24, 2020. REUTERS/Kevin Lamarque

Jon Bon Jovi performs during a drive-in campaign event of U.S. Democratic presidential candidate Joe Biden at Dallas High School in Dallas, Pennsylvania, U.S., October 24, 2020. REUTERS/Kevin Lamarque

Radiohead guitarist Ed O'Brien plays a Circle Guitar, a radical redesign of the instrument that strums itself, in a studio in London, Britain, October 1, 2020. Picture taken October 1, 2020. REUTERS/Stuart McDill

Radiohead guitarist Ed O'Brien plays a Circle Guitar, a radical redesign of the instrument that strums itself, in a studio in London, Britain, October 1, 2020. Picture taken October 1, 2020. REUTERS/Stuart McDill

Radiohead guitarist Ed O'Brien plays a Circle Guitar, a radical redesign of the instrument that strums itself, in a studio in London, Britain, October 1, 2020. Picture taken October 1, 2020. REUTERS/Stuart McDill

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

German singer and songwriter Mark Forster stands next to a wax figure of himself at Madame Tussauds in Berlin, Germany, August 12, 2020. REUTERS/Hannibal Hanschke

Members of the Alfama Quartet rehearse for the classical music concert "Candlelight", in which they play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

Members of the Alfama Quartet rehearse for the classical music concert "Candlelight", in which they play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

A member of the Alfama Quartet plays during classical music concert "Candlelight", in which they play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

Members of the Alfama Quartet play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, during the classical music concert "Candlelight", at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

Members of the Alfama Quartet play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, during the classical music concert "Candlelight", at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

Members of the Alfama Quartet play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, during the classical music concert "Candlelight", at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

A member of the Alfama Quartet plays the violin during classical music concert "Candlelight", in which they play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

Members of the Alfama Quartet play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, during the classical music concert "Candlelight", at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

Members of the Alfama Quartet play pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, during the classical music concert "Candlelight", at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

A general view shows La Tricoterie spectacle hall before the start of the classical music concert "Candlelight", by the Alfama Quartet, playing pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

A music sheet is pictured before the start of the classical music concert "Candlelight", by the Alfama Quartet, playing pieces of composers Pyotr Ilyich Tchaikovsky, Felix Mendelssohn and Antonin Dvorak, at the spectacle hall La Tricoterie in Brussels, Belgium, July 9, 2020. REUTERS/Yves Herman

Lebanese maestro Harout Fazlian stands on stage before the start of "Sound of Resilience" concert of the Baalbeck music festival, which was broadcasted live with no audience, in Baalbeck, Lebanon July 5, 2020. Picture taken July 5, 2020. REUTERS/Aziz Taher

Musicians from Lebanon's philharmonic orchestra are seen on stage before the start of "Sound of Resilience" concert of the Baalbeck music festival, which was broadcasted live with no audience, in Baalbeck, Lebanon July 5, 2020. Picture taken July 5, 2020. REUTERS/Aziz Taher

Lebanese maestro Harout Fazlian stands on stage before the start of "Sound of Resilience" concert of the Baalbeck music festival, which was broadcasted live with no audience, in Baalbeck, Lebanon July 5, 2020. Picture taken July 5, 2020. REUTERS/Aziz Taher

Musicians from Lebanon's philharmonic orchestra are seen on stage before the start of "Sound of Resilience" concert of the Baalbeck music festival, which was broadcasted live with no audience, in Baalbeck, Lebanon July 5, 2020. Picture taken July 5, 2020. REUTERS/Aziz Taher

A nurse participates in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

A nurse participates in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

A nurse takes a selfie as she participates in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi TPX IMAGES OF THE DAY

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

Nurses participate in a Zumba aerobic fitness program as a way of helping them to cope with working situations during the coronavirus disease (COVID-19) outbreak within the Infectious Disease Unit grounds of the Kenyatta National Hospital in Nairobi, Kenya May 28, 2020. REUTERS/Njeri Mwangi

A member of Skyers Iraqi Band, Haider Ghassan, 25, guitar, trains online at his house, following the outbreak of the coronavirus disease (COVID-19) in Baghdad, Iraq May 6, 2020. Picture taken May 6, 2020. REUTERS/Thaier Al-Sudani

Member of Skyers Iraqi band, Hussain Mazen, 24, guitar, trains online at his house, following the outbreak of the coronavirus disease (COVID-19) in Baghdad, Iraq May 5, 2020. Picture taken May 5, 2020. REUTERS/Thaier Al-Sudani

A drum wall clock is seen at the house of Ahmed Mohy, 25, a member of Skyers Iraqi band, following the outbreak of the coronavirus disease (COVID-19) in Baghdad, Iraq May 6, 2020. Picture taken May 6, 2020. REUTERS/Thaier Al-Sudani

A member of Skyers Iraqi band, Ahmed Mohy, 25, electronic drum, trains online at his house, following the outbreak of the coronavirus disease (COVID-19) in Baghdad,Iraq May 6, 2020. Picture taken May 6, 2020. REUTERS/Thaier Al-Sudani

Members of Iraqi band Skyers, Hussain Mazen, 24, guitar and vocals and Haider Mazen, 27, electronic keyboard, train online at their house, following the outbreak of the coronavirus disease (COVID-19) in Baghdad, Iraq May 5, 2020. Picture taken May 5, 2020. REUTERS/Thaier Al-Sudani

Members of Iraqi band Skyers, Hussain Mazen, 24, guitar and vocals and Haider Mazen, 27, electronic keyboard, train at their house, following the outbreak of the coronavirus disease (COVID-19) in Baghdad, Iraq May 5, 2020. Picture taken May 5, 2020. REUTERS/Thaier Al-Sudani

A member of Skyers Iraqi band, Ahmed Mohy, 25, electronic drum, trains online at his house, following the outbreak of the coronavirus disease (COVID-19) in Baghdad,Iraq May 6, 2020. Picture taken May 6, 2020. REUTERS/Thaier Al-Sudani

A member of Skyers Iraqi band, Hussain Mazen, 24, guitar and vocals, trains online at his house, following the outbreak of the coronavirus disease (COVID-19) in Baghdad, Iraq May 5, 2020. Picture taken May 5, 2020. REUTERS/Thaier Al-Sudani

Jose Romero, a Spanish guitar maker, works inside his shop as he waits for costumers on the first day of opening during the lockdown, amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, May 4, 2020. REUTERS/Sergio Perez

Jose Romero, a Spanish guitar maker, works inside his shop as he waits for costumers on the first day of opening during the lockdown, amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, May 4, 2020. REUTERS/Sergio Perez

Jose Romero, a Spanish guitar maker, works inside his shop as he waits for costumers on the first day of opening during the lockdown, amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, May 4, 2020. REUTERS/Sergio Perez

Jose Romero, a Spanish guitar maker, works inside his shop as he waits for costumers on the first day of opening during the lockdown, amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, May 4, 2020. REUTERS/Sergio Perez

Two musicians play at Gleisdreieck park as the spread of the coronavirus disease (COVID-19) continues, in Berlin, Germany April 25, 2020. REUTERS/Annegret Hilse

Two musicians play at Gleisdreieck park as the spread of the coronavirus disease (COVID-19) continues, in Berlin, Germany April 25, 2020. REUTERS/Annegret Hilse