1. Buskers are street musicians who perform music for money in the subway stations of London. Most buskers are young people looking for alternative work and some are dedicated musicians.
2. The quality of music is important for buskers as their audiences consist of passersby who may only have a short time to listen. Therefore, the music needs to be simple but well played.
3. While busking without a license is technically illegal, the police generally turn a blind eye to buskers as they, like many passengers, enjoy the music in the underground.