On Berg's "Die Nachtigall," the trio reveals the hidden melodic nature of serialism via timbral exploration and tempered tonal extension. Simply put, there are no records like the Stenson Trio's Serenity. The band has outdone themselves by their slow, careful development over three records and has become one of the premier rhythm trios on the planet. Serenity is not only the group's coup de grace, but also a jazz masterpiece of the highest order.