The musician is playing the guitar alone the beginning.
Then, another street guy joins in to rap with the guitarist. On the right, someone has begun to record this impromptu jam.
A third person appears and joins in the session. He claims he can mix and dub music with high skill.
Now, there are more people there, some participating and some just listening. It is now an event.
Suddenly, the session ends just as quickly as it started, the magical music moment is over!!