I have learned so much from this site...coming out of lurking...here goes!
I come from a piano background, but I have a great appreciation for the organ, and I have come to believe in its great suitability for the Catholic liturgy. I have improved a lot over the past few years, but I'm probably not to the AGO-SPC level yet. I still have some difficulty with the fingering on organ, but I'm getting better at that, too.
I can play pieces (manuals and pedals) from the Lorenz (not all of their stuff is terrible!) Easy Organ Library without too much trouble, if that gives you a better idea of my capabilities. I'm just starting to look at the Bach Orgelbuechlein.
I'm looking for something flashy that I could use for auditions/interviews that makes me sound like I'm a halfway-decent organist who can play manuals+pedals. I work hard at getting better, but it's slow going sometimes!
Try the toccata in G by Theodore Dubois or the toccata by Eugene Gigout. Mostly manuals work with not all that much pedal. When you learn them they sound very flashy and lots of fun.
The chorale preludes of a late-19th-century German composer, Carl Piutti, seldom have very difficult pedal parts. They might be worth considering (not least for their musical value, which is invariably substantial). Few of them are more than two pages long; several consist of only one page each.
Unfortunately most of them appear to be available solely in a rather expensive Bärenreiter printed edition. Still, a university library might be able to help out if you'd rather not pay full price for the works in question.
Take a look at the preludes and fugues in "Ariadne Musica" by JKF Fischer. I like to use the one in A minor for Pentecost and Votive Masses of the Holy Spirit.
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