1 is an acoustic performance that has some lyrical changes towards the end, as well as a complete tempo change, with the song being played much slower and which more emphasis on Vedder's voice. There are also no drums in this version, with the percussion being played on a set of bongos.
The first track is an acoustic rendition of the song, featuring altered lyrics at its conclusion, along with a significant tempo change that slows down the music and emphasizes Eddie Vedder's voice.  It also omits drums, using bongos for percussion instead.