Figured Chords Question

[xtp]

If we use the following example chords; Fminor b9, [IV] Bb major, [V] C7.

What would be the correct way to denote the i chord? Would it be called the i chord or i b9 chord.

Similarly if I substituted the V chord [C7] with a 7b5 chord built on the b9 is it still called the V chord or a bII chord.

In our above example; Fminor b9, [IV] Bb major, [bII] Gb7b5

Just curious.

woops typo just corrected, Bb major not B major.

[jancivil]

If we use the following example chords; Fminor b9, [IV] B major, [V] C7.

What would be the correct way to denote the i chord? Would it be called the i chord or i b9 chord.

Similarly if I substituted the V chord [C7] with a 7b5 chord built on the b9 is it still called the V chord or a bII chord.

In our above example; Fminor b9, [IV] B major, [bII] Gb7b5

Just curious.

All I know from 'figured chord' is figuring a harmony from the bass. So an inversion of a narmony that contains a 9th from the root won't have 9 in the 'figure' (but another number indicating the position of that Gb to the bass). Root position, you'd be leaving out part of the harmony ommitting the 9, innit.

if your harmony = eg., Gb7 b5, the functional harmony can be ambiguous. If your goal is certainly Cb, it's V of Cb. If it's you substituting a dominant 7th by b5, the idea is really to have the full chromatic as an option - so to me it's a moot point whether it's 'V' or not; it is unless it isn't...

If I had to figure the bass for someone else I'd say go with bII7 b5 as it's not an inversion and there's no question of what the notes are. The figure for it as an inversion is 6/4/3, and the sixth being G to E, it's now an augmented sixth in the figure: +6/4/3. Counterintuitive to see, to me, but a schooled person might suss it by sight, who knows.