Ukulele Wheel - Suitable for Soprano, Concert or Tenor - Beginner to Advanced. Major / Minor Ukulele Chords in Key, use it to easily transpose and arrange music. The Ukulele Wheel has a rotating front cover, displaying the 7 In Key chords in the open window. The Key is set by locating the Root or starting note or chord in the Number 1 position. The Outer Window displays the 3 In Key Major Chords. The Inner Window displays the 4 In Key Minor Chords.