The 54JM is identical to the 54JU except that the matte finish with lacquer keys provides a unique look and warm tone. The Series II sopranino, soprano, alto, tenor, baritone, and bass saxophones have been the professional choice for a generation and continue to be the most popular professional saxophone in the world. The reasons are clear: they all possess a flexible but centered tone that is natural in almost any playing situation. Yellow brass body tubes and keys resonate across the entire timbre spectrum: full-ribbed construction enhances their durability. The Series’ superior intonation characteristics make these saxophone a natural choice for any professional or those who aspire to be.