Thanx for taking the time to "work it out" my most honorable Mr. Seed.
MUSIC is so SIMPLE....and a demonstration goes far... yet it is so difficult to put into words....which can be easily followed.
In the interest of the beginner's I,IV,V simplicity....another "fun-thing" to play with....is something you, Mr. Seed, already know very well.....(the "secret" of the flated-seventh.
Take any phrase ending 7-chord and play it with the highest note, a half step lower. INTERESTING???? Sound??
Have Fun, Be Safe, Work/Play Hard