
famous beagle
Well-known member
That is one of the oddest chord progressions I have ever seen... I'm all for key changes, but going from a Major to a Minor key usually doesn't fair well, but whatever floats the composers boat...
But to the original question; there is no standard rule to a bridge... a bridge is a way to transition between two parts; typically (todays standard) between chorus and verse or vise-versa. bridges work well to switch to a progression and sometimes, if done correctly, to a different key,tempo, timing change, etc...
Heres a simple example:
Cm -Verse
Bb -Bridge
Fm Cm -Chorus
or
Cm -Verse
Bb -Bridge (retarding the bridge helps with the change)
Abm -Chorus
Hope that helps
I'm wondering if you made a mistake in your post, because you talk specifically about going from a major to a minor key as something that doesn't fair well, yet in the progression you listed at the end, you do just that: Cm - Bb - Abm.
The Cm and Bb could come from C minor, or the relative major, Eb major. But moving to Abm for the chorus is very strange. Abm can be seen as being in the parallel Eb minor, in which case you've moved from major to minor --- the same technique you said didn't fair well.
Perhaps you meant to just say Ab?
Anyway, I didn't see the "Be Home Soon" bridge as actually shifting to C minor; I just saw the Bb chord as a borrowed chord from the parallel C minor mode. Of course, the bridge moves on into the keys of G and D from there.
But borrowing chords temporarily from the parallel minor mode is not that uncommon. The Beatles did this all the time. Two of their favorites were the minor iv chord in a major key, as in the verses to "In My Life":
A - E - F#m - A/G
D - Dm - A
Or they loved to borrow the bVI chord as well, as in, say, the coda of "I will":
| Bb (IV) - C (V) | Db (bVI) | | F ||
Anyway, I'm not trying to put words into your mouth, but I'm not sure I understand your suggestion.