The haunting moments are being shared across the Internet, and these are the two that grabbed our attention.  A man who brought his piano by bike to the Balaclan to play Imagine, and a solo violinist who played mournfully in Trafalgar square before disappearing.

Last night this German man pulled a grand piano down the road behind his bike, and stopped 10 metres away from the Bataclan, the scene of the horrible concert-massacre in central Paris.  Then he started playing Lennon’s Imagine in front of a gathering on-street audience to create a moment everyone is sharing online.

In a similar moment in a vigil in London, a man played a single violin to the crowds gathered at Trafalgar Square.  His music was emotional and captivating, causing people to hold up their phones as vigil-flashlights.

Simple, memorable moments of people and music coming together to mourn.

Have you seen other moments like this?