Damn it Jim, I'm a Computer Programmer, not a Professional Musician!
I sing sea chanteys from my Palm Pilot.
I sing also from the Hughill "Shanty Bible", from lyrics off of the DigiTrad, and from the "Official Ship's Company Chantey Hymnal". When I print the lyrics myself, I print them in the largest font I can, so I can leave them on the table and glance down. At our monthly open chantey sings, we usually 2 laps around the room. I make a CD of the shanties I hope to do and play it on repeat mode during my 2 hour+ daily commute.
I have about 3-4 chanteys I do by rote, which comes in good for parades, because after a couple of choruses of "Sam's Gone Away", "Blow the Man Down" and "Round the Corner, Sally" you have a whole new audience!
WD