1) I'm cooperating with a musician from madagascar. We play his
original tune, traditional falk song rearrenged, and some new
songs written by his contemporaries. It's nothing like jazz,
and ordinary he used simplest harmony. (rythme is sometimes just
undiscribable in western notation).
His typical songs use V-IV-I progression everywhere. It's played
simply G-F-C or G7-F-C on guitar, for ewxample. Trap is I react
on V with movement to I subconciously, and hung on IV chord.
What is this IV here? I thought thought and concluded it can be
I6 with suspended4 on base. ( V-Isus4-I ), thought authors never
know harmonical theory and just happen to like such stuff.
My melody so leteraly suspend, because it's the function of sus4.
2) I was seeking such examples and noticed something all of you know.
What is IV7 of Blues?
In Archaic Blues progression:
// I7 / IV7 / I7 / I7 /
/ IV7 / / I7 / /
/ V7 / IV7 / I7 / V7 //
IV7 of 10th bar is in question.
From the same point of view like our 'backdoor7th' this IV7 looks
me also an implicite substitution of Im6. When you play
Blues, you use b3 of I (b7 of IV) which is the 'bluenote' on
these bars,
don't you?
muchan