More than 300 musicians gathered at a shopping centre in Porto, Portugal, on 19 May to break the world record for the largest ever viola ensemble. The number of players giving a ‘flashmob’ performance to shoppers has yet to be confirmed by Guinness World Records, but unofficial figures put the total at 353 – 32 more than the previous record of 321. Here is a selection of photos from the day, courtesy of the Portuguese Viola Association, which organised the event as part of its biennial conference.

To view the gallery, click on any picture and then use the left and right arrow keys to scroll through the images.

Click here to read a news story on the event.