QUOTE(thouston @ Oct 23 2008, 01:20 PM)

Mad Tom has some useful things to say on this..
Where are you, MT?

I'll dig out the references to the the three or four old threads on this topic and post them.
Meanwhile: Attack the music from many angles: aural, kinaesthetic, structural, harmonic, thematic. Think it through away from the instrument. Be prepared for the shock that however hard you may think you have worked at memorizing a piece, you might have to work ten times harder still.
Be despotic with your memory (Schopenhauer's phrase). Drag out whatever scraps you know are in there by whatever means necessary. It is not the stuffing of data in to your mind that is usually the problem - it is practice in recalling it that most of us lack - and to do it unhesitatingly in a variety of environments - and often under stress. [In quiz shows we all realize that we knew the answers - but often only after we have heard them. Recognition and recall are different skills]
Next don't be discouraged by those stories of musical prodigies that could hear any piece once and immediately play it perfectly. If they exist at all they are rare. Most of these stories are third hand exaggerated re-tellings. The reality, even for many top professionals, is that memorizing repertoire is just plain hard work, and they find it just as difficult as we amateurs.
Finally, bear in mind that a professional who learns a difficult piece quickly can do so because he/she already has all the dexterity and technique to play it, so their full attention is on learning the notes and interpretation. For you or I half or more of our time and attention might go on improving our playing skills to meet the demands of the piece.