gramophone_miku
An outfit of Hatsune Miku designed by Rella for the 5th Anniversary of Miku Symphony (vocaloid) in 2020. As the name suggests, it's based on gramophones.
She is assumed to be a music box doll "by Rella":/posts/3840630, hence she also has strong ballerina and music box motifs with see-through materials.
English name taken from "one of Rella's arts":/posts/4163748.