(Important note: Revisiting her background I must say that she was created before the Wildemunt campaign of Critical Role started. For I see some resemblances to Jester now XD 

The names of the places are vague or non mentioned ( like the elven court ) on porpouse to adjust to your campaing as needed ) 

Krizarith's mother is a renowed bard in the elven court. She is one of those elves that wander the outside world from time to time to collect new tales, news from afar, friends and.. lovers. One of that lovers gave her more than she had first thought. But she was happy with her pregnancy and carry it over. Kriz doesn't have any memory of her father, and his mother always smiled with tenderness when she asked for him, until she stopped to do so. 

Her childhood was a happy one, despite her mixed blood most of the elves were kind to her, if asked, most would say that her natural kindness and charm caught one off guard. By the age of two she grabbed one of the violin of her mother, and started playing it, just imitating her mother's movements she had seen on and on. She was a natural and truly talented. there was no doubt that her mother trained her in all the arts that she will need in the future. 

When she came to age, her mother took her in one of her trips. They went from their city to Cormyr, the Dales, Elturel, Baldur's Gate, Waterdeep and as north as Neverwinter. ( Note; added now to give more detail ) They acted and partied in the way, and in the most important courts of the nations they visited. The Emerald Jewel, as her mother was known outside the elven realms, was well accepted in all places and the add of Krizarith and her violin and voice to the show only amde grew her fame. 

Now Krizarith is on her own for the very first time. She is not afraid, however, she is a confident and happy young half-elf that used to get away of trouble with a wink and a smile. Few times save the sparring sessions and the swordplay lessons with her mother has she been forced to use her rapier.