Andrew Bird’s Capital I is one of my favorite songs of all time. Originally called just I on Weather Systems, it was called “Capital I” in the space between that album, during the Mysterious Production of Eggs period, and until Armchairs, when, due to copyright squabbles, it was retitled Imitosis and given a latin feel. To see the best version, check out Fabchannel’s concert video
PDF Download of the looped riff
The general chord progression is [Am] to [C] to [G7], occasionally using the version of Am with a C on the high A string.
Chords are for a soprano/concert size ukulele tuned GCEA