B Ionian

The B Ionian mode — B C# D# E F# G# A# — shown across the guitar neck.

Swipe the neck sideways to see the higher frets.

B Ionian is the major scale — same seven notes, same order. The mode name describes which chord you treat as home, not a different set of notes.

The tool shows this from its parent key, B major, with B marked as where Ionian begins, the same seven notes centered on B.