August 23, 2010
Use Complete My Album to Take Advantage of Album Pricing
Thanks to the Complete My Album Quick Link in the iTunes Store, you can buy most songs individually and know that if you later find yourself wishing you'd taken advantage of the album price to buy them all, you can still do so without paying extra. Clicking the link (in the Quick Links section on the upper right of both the main iTunes Store page and the main Music page) takes you to a page that displays all the albums you're eligible to complete and shows the price to you -- the regular album price minus what you've spent for the songs you've already bought. Albums remain eligible for Complete My Album for six months after you've first bought a song from them, and sometimes longer. For additional information, see the Complete My Album FAQ.
http://support.apple.com/kb/HT1849