Secondary Dominants and Secondary Leading Tone Chords Theory Things   William Wieland
Doing Roman numerals twice. Carl Mathwig
The chord below the slash is identical to the next chord (in MUS 111).
Any dominant or leading tone chord may appear above the slash including:
V major triad (up a perfect fifth from the temporary key) V 7 is also common
vii o diminished triad (built on the leading tone of the temporary key) vii o 7 &   vii 7
Music featuring these chords:   America     Star spangled banner (1918 ed.)     Beethoven 1, mvt 1     Eternal Father

Worksheets:   Seconday Dominants I   Seconday Dominants II   Seconday Leading Tone Chords I   Seconday Leading Tone Chords II

Online Tutorials:   1   2   3

Writing Secondary Dominants or Secondary Leading Tone Chords
  1. Identify the secondary key (the bottom Roman numeral).
  2. Write the notes of the top Roman numeral in the secondary key.
  3. Invert if necessary.
  4. Add accidentals if necessary.
Online Tutorials:  I     II