If I happen to learn a tune from notation or tab I find it is quite difficult to get it memorized.
Lately I have adopted my learn by ear method to the written music.
First off- I have some nice recording and playback equipment.
I take the tune I want to memorize and record it while reading it from the sheet music so I get a farily good version.
Then I play along. I have a footswitch control on the player so I can just tap the switch after each phrase to stop the playback, and I play with the phrase until I have the notes. Pretty soon I am going right on through the tune with no problems. Later, after many repeats I add double stops, variations on the runs etc. to keep it interesting and to make it my own.
Be yourself, everyone else is taken.
Favorite Mandolin of the week: 1917 Gibson A4