CHIME TUNINGS-QUARTAL A musical palindrome, the Quartal scale is based on intervals of fourths and fifths. Its smooth and serene sound captivated American composers, notably Aaron Copland and Paul Hindemith, in the early twentieth century. Our Basso Profundo chime uses the Quartal scale but moves the B and D an octave higher. Listen to samples of the Quartal scale in various chime sizes: Quartal Soprano Quartal MezzoSoprano Quartal Alto Quartal Tenor Quartal Bass Quartal Basso Profundo