This article is from the Piano Playing from Memory FAQ, by Isako Hoshino rmmpfaq@yahoo.com with numerous contributions by others.
Playing a piece of music is a rather complex task. Thus it is
understandable that learning to play from memory may pose
difficulties. In fact, some pieces are just too complex for most
people to memorize.
For someone who has played little or not at all from memory and
who wants to develop this ability, selecting what to memorize is
an important choice. For an initial effort it is probably best to
choose a piece which is appealing and easy to play.
 
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