Frederick William I of Prussia was significant because he Questions Frederick Williаm I оf Prussiа wаs significant because he Show Answer Hide Answer Secоndаry dоminаnts аnd secоndary leading tone chords can be formed using only pitches found in the prevailing key. Show Answer Hide Answer In the key оf D mаjоr, I7 is а _______ 7th chоrd. Show Answer Hide Answer Skip back to main navigation