Species Counterpoint and Harmony

[mcgillcomposer]

Hi everyone,

I am currently preparing lectures for a harmony and counterpoint class to be given this summer. In order to prepare examples, I would like to enlist the help of anyone willing. I need solutions in two and three parts to the following cantus firmi:

C - D - E - G - A - F - E - D - C (this may be transposed to any key/voice - modal solutions are allowed)

C - G - Ab - G - F - G - Eb - D - C (this may be transposed to any key/voice - modal solutions are allowed)

So, your solution should include two or three parts (one of which will be the cantus in whole notes). You may give a solution in 1st, 2nd, 3rd, 4th, or 5th species...I need examples of all of them.

For harmony, just take a Bach chorale melody and harmonize it in 3 different ways.

Thanks in advance for anyone who is willing to help.