La Bella's Phosphor Bronze set is made with exclusively formulated bronze and tin alloy, producing a brighter tone and longer string life than any other phosphor bronze set on the market. Since its introduction in the 1970s, the Phosphor Bronze Series has become one of the most popular acoustic set for all genres of music. The Baritone guitar has a longer scale length (26"-29") and heavier strings than a regular guitar. It is usually tuned a perfect 4th or 5th below standard guitar pitch.