When to use the second inversion of a chord

I do not use these terms, but by intuition, the fourth and sixth passing chord could be the one found in the successions I-II-III and IV-V-VI, ascending and descending, in which the chord found in the middle, i.e., the II and the V respectively, can be harmonized in second inversion.

The fourth and sixth chord of turn should be the one you indicate, i.e., a passage like a plagal cadence, whereas regarding the fourth and sixth of cadence, I think there are no doubts.

Thank you!! everything seems very clear to me!!

Fox wrote:

Hi everyone

I know that the second inversion of a chord is mainly used in:

Cadential fourth and sixth

Passing fourth and sixth

Neighboring (turn) fourth and sixth

but I haven't quite understood one thing: therefore, is the cadential fourth and sixth found in a conclusive position and thus always characterized by the movement I(46) V I? (of any key, obviously)

The passing fourth and sixth, on the other hand, what succession does it have? I V(46) I6?

And the neighboring fourth and sixth? I IV(46) I?

Yes, it is as you say... the cadential 4th and 6th usually brought a flourish, and the soloist would show off their skill and harmonic knowledge by improvising a cadence, precisely, before resolving on the V and then on the I with a final close. Today, final cadences are no longer improvised, but it is a shame...

Great, thanks!

A nice case of starting in 4th & 6th

Open content (youtube)

micamahler wrote:

A nice case of starting in 4th & 6th

where are the 4 and 6 located?

Open content (youtube)

Fox wrote:

where are the 4th and 6th?

Will it be at the beginning?

micamahler wrote:

A nice case of beginning in 4th & 6th

Dante wrote:

Will it be at the beginning?

i understood, thanks!

but is the E natural of the horns a third above or a sixth below the written C?

suonolatromba wrote:

but is the E natural of the horns a third above or a sixth below the written C?

Sixth below