nowaysj wrote:Thanks for the conversion. Unfortunately, I don't understand this as well as I thought I would have. We think about this later.

Triads are 3 notes-chords (the most basic chords for a given scale).
For each scale, for instance A (A, B, C, D, E, F, G), there are 7 triads to use for chord progressions (A C E, B D F, C E G, etc).
They are minor if the third is minor (3 semi-tones above the root note), major if the third is major (4 semi-tones), diminished when there are only 3 semi-tones above the third.
Knowing which one is minor or major may help to build your chord progression but you may also just do it by ear.
For the record, the i, iv & v chords are respectively called tonic, subdominant & dominant chords.
You can practice chord progression by playing different combinations and see which sound good to you.
Also, if you consider the Root column, you'll notice it shows the keys used for the given scale, which is handy : you're sitting in front of your MIDI keyboard, the left hand will play the chord progression using the triads while the right hand will play the melody using these notes (or for instance, pads will make use of the triads and arpeggios the notes of the scale).
Like I said, I'm just learning so this may not be the most intelligible way to put it but hopefully it'll help you a little.
@ Phigure : well done for the pdf, I'll upload that instead.