A man hems his pants next to instruments set out on display for sale in a street of Port-au-Prince, Haiti, April 2, 2018.

A street artist plays the saxophone in central Brussels, Belgium, April 3, 2018.

Members of a Rondalla, an ensemble of plectrum and stringed instruments, are silhouetted while holding up their instruments after performing in Ciudad Juarez, Mexico April 2, 2018.

Gibson guitars are displayed at a music store in Singapore April 3, 2018.

A man plays the flute during a performance at Rawal Lake in Islamabad, Pakistan April 3, 2018.

Belgian student Casandre Marfin plays piano at the Conservatory of Music in central Brussels, Belgium, April 3, 2018.

Music instrument maker Joachim Nguyen Van Dong works with a saxophone at his shop in Nam Dinh province, outside Hanoi, Vietnam April 3, 2018.

Mourners walk towards the cemetery as musicians play in a street of Port-au-Prince, Haiti, April 3, 2018.

The controls of a headphone amplifier are seen at a music store in Singapore April 3, 2018.

A man walks next to microphones put set on display for sale in a street of Port-au-Prince, Haiti, April 2, 2018.

South Korean student Dooyeol Yoon plays the saxophone at the Conservatory of Music in central Brussels, Belgium, April 3, 2018.

Music instrument maker Joachim Hien tests a trumpet as his brother Joachim Ngoc tests a saxophone at their shop in Nam Dinh province, outside Hanoi, Vietnam April 3, 2018.

Jackson guitars are displayed at a music store in Singapore April 3, 2018.

A woman carrying a musical instrument in a case on her back waits as an underground train pulls into Bank tube station in London, Britain April 3, 2018.

Belgian student Casandre Marfin plays piano at the Conservatory of Music in central Brussels, Belgium, April 3, 2018.

Spanish student Anna Ferrandis Vila plays the clarinet at the Conservatory of Music in central Brussels, Belgium, April 3, 2018.

Music instrument maker Joachim Hien (L) tests a trumpet as his brother Joachim Ngoc tests a saxophone at their shop in Nam Dinh province, outside Hanoi, Vietnam April 3, 2018.

The Gibson logo is seen on a Les Paul guitar at a music store in Singapore April 3, 2018.

Traditional music instruments, locally known as Rabab, are seen hanging for sale at a workshop in Peshawar, Pakistan April 3, 2018.

A street artist sings and plays the guitar in central Brussels, Belgium, April 3, 2018. REUTERS/Francois Lenoir

A woman poses with a Mariachi hat as members of the Mariachi International Mexico band perform at Puerta del Sol Square in Madrid, Spain, April 3, 2018.

Musical notes are seen on on sheet music in this illustration photo April 4, 2018.

Guitars are displayed at a musical instruments shop in Tokyo, Japan, April 3, 2018.

A man displays the traditional musical instrument Rabab, at a workshop in Peshawar, Pakistan April 3, 2018.

Musical notes are seen on on sheet music in this illustration photo April 4, 2018.