Thank you Tappas for your kind words...I do enjoy playing and like anybody, I will get bored if I hear the same all the time....
So I try to make it fun and not repeat often songs.
I wish I could tell Stephenm52 how to memorize, I just do, I do not recall how I began doing it...I play since I was 4, the mandolin, laud, bandurria, accordion, etc....so, the organ came when I was 12 years old....I guess I am like a Parrot...wherever I hear, I play.