The jTab Guitar Codeblocks plugin enables users to display guitar chords and tablatures using jTab notation directly inside their notes. It supports multiple jTab lines per block, allows markdown-style annotations, and includes quick toggles to view jTab examples or chord names. The plugin also offers extensive visual customization, letting users choose between classic, theme-based, or fully custom color schemes. With features like preserved code when switching block types and a live preview of styles, it caters well to musicians and guitar learners who want to document, explore, and fine-tune musical notations in a visual and organised way.