Most events begin at 2pm and run till around 11pm, although many will go on much later (so if you live in a busy area, don't expect to get much sleep).
There are thousands of free events around the country for the public to get involved in, including choirs, DJ sets, classic music, rock and pop – something to suit all tastes.
This year the traditional concert
given in the gardens of the Palais Royal in Paris returns after it was skipped last year and replaced with six regional concerts.
But even if you can't make it to the famous sites, there will be music of every kind in public areas all over the country. Both amateur and professional performers will be on show on the streets, in the pubs, even on their balconies.
In the capital, people usually flock to the city centre to see what the fuss is all about. Hotspots like Rue Oberkampf are normally swarming, but keep an eye out along some of the quieter streets if you're looking for something a bit more intimate.
3. You can party with the president
For the second consecutive year, French President Emmanuel Macron is inviting people to celebrate the event at the Elysee Palace.
This year's event at the Elysee will put the spotlight on female musicians, with French indie folk duo Brigitte, Iris Gold, Pongo and Irish group Saint Sister, all set to grace the stage at the presidential palace.
And you might even get a glimpse of the big man himself, with the French leader and Brigitte Macron making an appearance at last year's concert (see video below).
4. Join in with the joint sign-along of the European anthem
There is one part of 2019's Fete de la Musique which makes it stand out from the events of previous years.
The Ministry of Culture is encouraging everyone to perform an interpretation of the European anthem Ode to Joy – composed by Ludwig van Beethoven in 1823.
This is supposed to take place at 8pm on Friday as a “unifying event” for all the European countries celebrating Fete de la Musique.
This brings us on to our next point…
5. It's an international event
The rest of the world didn't take long to feel the beat of the festival, and it soon became an international success too. This year, 120 countries are expected to participate.
The festival is known in English as Make Music Day or World Music Day, as the French title is a homophone that can mean both (the slogan is “faites de la musique” which is pronounced the same way).
The festival was carried out in 700 cities around the world last year, in countries as far as Russia, Brazil, and Australia.
But as usual, the biggest party this year will be in France which typically has too many events to even count.
6. The party is the brainchild of an American
The concept came about back in the 70s when American Joel Cohen was working as a music producer for French National Radio (France Musique).
He came up with the idea of a day full of music to celebrate the summer solstice on June 21st – the longest day of the year – and the idea caught on.
By 1982 the French government put its weight behind the idea and made it an official event and it's been popular ever since.
7. The event hasn't always gone smoothly
But it's not all smiles and laughter, as the event has proved controversial in the past. In 2014, 50 venues in Paris boycotted the event as part of a protest of the “abusive behaviour” of police, who had been cracking down on late night noise in the area.