This is my own solo mandolin arrangement that works in the melody along with as much of the counterpoint as is reasonable. In parts of the castle just the first 8 bars loop; for the rest you loop the entire thing.
. = mute note
~ = tremolo pick (optional, but a nice touch in the 6th measure)
E----0---0---0---0-|-----------------|---1-0-1---1---1-|---------0-------|
A------5---3---2---|-0-------0-------|---------5---3---|-2-----2---------|
D------------------|-------2---5-3-2-|-0---------------|---2-6-----2-4-6-|
G--2.--------------|---2-5-----------|-----------------|-----------------|
E----3-1-3-0-3---3-|-1~~-3~~-5~~-3-1-|-0-----0---------|-0-------0-------|
A--0-----------4---|-----------------|-----3---5---6---|-------2---5-3-2-|
D------------------|-----------------|-----------------|---2-6-----------|
G------------------|-----------------|-----------------|-----------------|
E----545-----------|---545-----------|---------1-------|-0-------0-------|
A--0-----767-323-0-|-------767-323-0-|-2---3-----0-3-0-|-------2---------|
D------------------|-----------------|---5---5---------|---2-6---------2-|
G------------------|-0.--------------|-----------------|-----------2-6---|
E----545-101-------|---545-101-------|---------1-----1-|-0---------------|
A------------323-0-|-----------323-0-|-2---3-----0-3---|---0-------------|
D--0.--------------|-----------------|---5---5---------|-----6-3-2-0-----|
G------------------|-5.--------------|-----------------|-------------5-4-|