This story is part of the Crystal Note AU that starts with Crystal Note - Welcome to Sweet Apple Acres!.
Although it's not necessary to read all the sequels to follow this story, there might be some names and details form previous stories along the way.

After vanishing from a curse for more than 1000 years, little is known about the Crystal Empire and its inhabitants. Especially the final years of King Sombra's rule remain shrouded by mystery. Even to the crystal ponies themselves as their memories remain effected by the tyrant King's dark magic.

Now the Crystal Empire has returned and King Sombra has been defeated, but the aftermaths of his cruelty still linger within his former subjects.

One crystal pony begins travelling through Equestria to learn about her past and finds friends along the way.

Crystal Note has regained her memories, but now feels more lost than ever. Unsure if she would be welcome in the Crystal Empire anymore, she follows her friends' advice to stay in Ponyville for now.

She soons finds out that she's not the only pony with a passion for music in town and makes some friends among the musicians of Ponyville. Can her new friends and her rekindled passion for music help her leave the terrors of her past behind?