The Baritone ukulele is the same tuning as the high four strings on a guitar. A 4th lower than a regular ukulele, but the shapes are all the same. The main reason you would want a baritone ukulele is because it sounds so dang good. It is significantly smaller than a guitar but still gives you a similar depth and color. The standard G C E A just does not do this, and vise versa. Both G C E A and D G B E are the same intervals but with a different key and tension. The same shapes inspire different composition. It is fun to have both a regular ukulele and a baritone ukulele. Both are equally, and uniquely ukulele!
Visit The Ukulele Site - Baritone Lessons - for free video lessons.