Depending on this choice, we get a dominant seventh chord or a major seventh chord.
From the scienceblogs.com
In a jazz or blues song, the tonic chord may be a dominant seventh chord.
From the en.wikipedia.org
Similarly the tonic seventh chord is half-diminished.
From the en.wikipedia.org
The section ends with a diminished seventh chord which resolved, through a flourish, into the tonic, D minor.
From the en.wikipedia.org
The augmented sixth chord usually appears in chord notation as its enharmonic equivalent, the seventh chord.
From the en.wikipedia.org
There are 7 strings per octave, all of which can be raised or lowered by pedals, allowing the diminished seventh chord B-D-F-Ab to be played without skipping over any strings.
From the en.wikipedia.org
From there, the second theme group begins with a lyrical section in G major which ends suspended on a seventh chord and is followed by a stormy section in C minor.
From the en.wikipedia.org
According to this definition a major triad fuses better than a minor triad and a major-minor seventh chord fuses better than a major-major seventh or minor-minor seventh.
From the en.wikipedia.org
The half-diminished seventh chord contains the same tritone, while the fully diminished seventh chord is made up of two superposed tritones a minor third apart.