Fringe Orchestra Challenge: Ten days to make beautiful music
15 August 2014 Last updated at 00:46 BST
Musician Shaun Buswell likes a challenge.
In 2012, he set himself the task of building an orchestra entirely composed of people he met on the London Underground and leading them to perform at a top London venue.
This year he took the story of his Tube Orchestra Challenge to the Edinburgh Fringe Festival, and set himself a similar task.
Shaun set out to form an orchestra from the streets of the Scottish capital, arrange the music and get them ready to play to the public - all in just 10 days.
BBC News followed him to see how he got on.
Real Time is a series for the BBC News website in which ordinary people tell their own extraordinary stories.
Video journalist: Dan Curtis