Can a cadence consist of a triad with only 2 different notes?
Let's say I'm in
Fmaj and want to include an imperfect cadence (
ii - V):
G - D - G followed by
C - E - G. The first triad has only two different notes (
D), is this possible?
My question arose because I'm doing an exercise that requires writing a short melody ending in an imperfect cadence in
Fmaj. I decided to use the
ii-V cadence with the chords shown above.
However, when I played the excerpt and finished with the "imperfect" cadence, it sounded a lot like a "perfect" cadence - the roots of the chords are
C which are also in the perfect cadence in
Cmaj and all notes are also present in the
Cmaj scale. It certainly doesn't sound imperfect, which is why I was wondering if this would be allowed in music.