All Along The Watchtower is a great song to practice your bar chords on. Many different artists have done versions of this song over the years. It's a pretty cool jam tune, so if you've got a friend who plays guitar as well (or bass), why not rope them into a jam session, and you can trade off on the rhythm and practice your improvising?
The chords for All Along The Watchtower basically go A - Bm - A - G, so the most challenging part is getting the rhythm right.
While you could play these chords in the open position, it actually makes a huge difference in the sound of the progression if you use bar chords. Notice that it doesn't quite sound right when you play them open?
Sometimes you really need to use a specific voicing of a chord, or it isn't going to sound quite right. That's a big reason why bar chords are so valuable to learn.
If you want to solo over this progression, I recommend using the B pentatonic minor scale pattern.
Are there any other guitar songs you've always wanted to learn? Leave a comment below and let me know which ones they are!