Guslar is a person who sings stories in a very special way. It's like when you read a storybook but instead of reading it, someone sings it to you. They also play a musical instrument called a gusle which helps them to tell the story with more feeling.
The stories that a guslar sings are usually about important events in history or legends that have been passed down from long ago. They might sing about battles that were fought in the past or about heroes who did great things.
The guslar doesn't just sing the words of the story though, they also use their voice and the instrument to create special sounds that make the story even more exciting. They might make sounds like a horse galloping or a sword being drawn from its sheath.
People in some cultures see guslars as very important because they help to keep stories alive and teach new generations about their history and traditions. Listening to a guslar sing can be a very special and exciting experience that you won't forget!