This is a fairly simple arrangement of “I Will” in DADGAD tuning that provides a good look at how to play in the key of G in DADGAD, and also uses a fair number of chords.
People often approach DADGAD, as well as many other tunings, as a vehicle for “droning” in a single key, which sometimes gives alternate tunings a bad rap, and this arrangement serves as a counter-example, with its fairly conventional I-vi-ii-V chord progression, as well as some more complex sections. The tune even modulates to the key of C briefly!
I Will is a good repertoire tune for an instrumental player to have because people generally know it. I arranged it many years ago, and still pull it out in performances, especially when I have a non-guitar playing audience, to give them something they recognize, and can hum along with.