Beepster
Now here's a question for you... how and when would you deal with concept of 7ths in relation to the modes while dealing with a newcomer to modal theory? I always kind of want to point it out when dealing with the actual tone/semitone structure but considering how many other ideas are floating around I think it is best to leave it to a separate chord study that points to the scale structure study as a reference.
Cheers.
The reason I suggested the change (order of what to practice) I listed rather than his is because I think when one knows this stuff it's easy to forget how hard it might be when trying to show it for someone else.
I think it pays to break it down into smaller sections for many of the theoritical aspects/lessons. Especially with modes since it seems that so many seem to be having trouble with them...at least that's what I'm reading and noticing all the articles about them.
That is why I limited it to dealing with one key and a key with no accidentals ( sharps or flats). It may help some keep track of the thought process. ( I think some refer to key centers to make it faster and easier based on the way they see or were taught....for instance in his lesson of starting with the Lydian and thinking about the 4th being raised (in C it would be F#) some would just think, "play a G scale starting on C" which would be perfectly fine. Again...just an example to show different way of looking at the same thing.
Your question (about 7ths) is a good example of deviating from the task at hand. Probably a mistake many make. Rather than focusing and practicing on the specific lesson until it's learned to point of "not forgetting it easily" or addressing questions specific to the lesson it can all become very confusing.
Beepster
The only exception being (and you probably already noticed the omission) is the Locrian mode.
Cheers.
Beep, it's not omitted. Check 05.