Looking to tackle the jazz tracks in collection (right now very inconsistent)

Plan is to first collect tracks in artist folder, then adding artists to style folder, then add to Jazz directory (Jazz - Swing - Glenn Miller - In The Mood.flac )

Issue is multiple Jazz styles --

Martha Tilton - Jazz and vocal style
Chick Corea - Jazz and fusion Style
King Oliver is Jazz and Dixieland style
Glenn Miller - Jazz and Swing style


I do not know how to add styles to a track...I was thinking of creating custom genres like Jazz-Fusion, Jazz-Swing etc... Looking for consistency in tagging scheme

Any jazz colectors out there ? Advice is appreciated....