Three chords are played throughout the entire song:
[ Tab from: https://www.guitartabs.cc/tabs/u/urban_species/i_wonder_crd.html ]
E |--4------4---------------------------------------------|
B |--4------6---------------------------------------------|
G |--5------5-------4-------------------------------------|
D |--4------6-------3-------------------------------------|
A |--6------4-----X-2-------------------------------------|
E |--4----------------------------------------------------|
http://en.wikipedia.org/wiki/Urban_Species
http://www.facebook.com/urbanspecies
http://www.myspace.com/urbanspeciesofficial
