I found this it made a world of difference understanding Harmonies you play the top note AND the note directly under it is the HARMONY
3rds
CDEFGABC
EFGABCDE
5ths
CDEFGABC
GABCDEFG
7ths
CDEFGABC
BCDEFGAB
One last thing, if you forget these, this is all you do to work it out. Write down the notes
C D E F G A B C on a bit of paper and then if you want to harmonize in sevenths for example, you start on C and count seven along which would give you B and keep doing it, but when you come to the last C in the list you go back to the beginning, but miss out the first C and go onto D. Eg. E harmonized in 7th's would be D because you miss the first C the second time you count the notes well there you go, harmony explained, hope it helps, this is a really cool thing to use in a band if you have 2 guitarists.
Now I just need to know where I put the notes/scale I'm playing and where I put the harmony notes that will be generated? If we only have 4 notes in our Harmony is that all we need to use in our CUSTOM SCALE
I hope we can all do harmonies easy with this info and your help
Thanks Gary