Alphabetize CDs
1. Def Artist_of Use Artist_of to refer to the group name
2. Pick Alpha Decide which end of rack is to be start of
alphabetic sequence, and call the first slot alpha
3. Pick Beta Call the slot next to alpha, beta
4. Exchange If Artist_of the CD in the alpha slot is later in
the alphabet than the Artist_of the CD in the beta
slot, interchange the CDs, otherwise continue on
5. More Betas? If a slot follows beta slot, begin calling it
the beta slot and go to step 4, otherwise continue on
6. More Alphas? If two slots follow the alpha slot, begin
calling the next one the alpha slot and the one
following it the beta slot; go to step 4; otherwise stop