18-20 June 2009
Divided into Sónar by Day and Sónar by Night, the three-day festival takes place in various venues across Barcelona.
Sónar's full title declares itself as a Festival of Advanced Music and Multi-media Art. Experimental and unashamedly pretentious, it's renowned as a place to discover new music and digital trends.
Who better to keep the arty crowd entertained than the unpredictable Grace Jones, the reformed Orbital and the fantastic Swedish players Fever Ray.
From £27 for one day.
British Airways flies to Barcelona from London London Gatwick and Heathrow. Book a flight on ba.com now.
Rock Werchter festival
2-5 July 2009
The small village of Werchter, 20 miles from Brussels.
Rock Werchter has moved away from its heavy-metal roots towards the indie side of the rock spectrum, even throwing in a bit of folk and pop.
Headliners for 2009 are a curious mixture of rock royalty, hipster darlings and folk favourites. The Killers, Nick Cave, Elbow and Metallica will be sharing a backstage area with Fleet Foxes, Lady Gaga, Katy Perry and Kings of Leon.
From £67 for one day.
British Airways flies to Brussels from London Gatwick and Heathrow. Book a flight on ba.com now.
2-5 July 2009
Roskilde, not far from Copenhagen.
This is one of the best organised and biggest festivals, with an eclectic line-up. Line-up Nine Inch Nails, the Mars Volta and Slipknot. Or try African music's favourite couple, Amadou & Mariam.
From £212 for four days.
British Airways flies to Copenhagen from London Heathrow. Book a flight on ba.com now.
Read on for Spain, Germany, Austria and Denmark music festivals