New music theory tool for students - Music Marketplace - Turn the Wheel Change the Key music transposer - The Doreen Allen Company - Brief Article - Product/Service Evaluation

American Music Teacher, April-May, 2003

The Doreen Allen Company, 18 Oakwood Ave., Livingston, NJ 07039; (973) 994-0672; info@transposer.com; www.transposer.com. $11.95 plus $2.35 shipping and handling.

The new Turn the Wheel * Change the Key music transposer and educational tool is designed to enhance students' mastery of music theory. Consisting of two wheels, ! this simple, sturdy, hand-held tool allows the user to transpose music quickly from one key to another.

Users can determine the notes in a given scale, find the notes in any chord, transpose from one key to another, find an unknown key knowing only one corresponding note or chord within the known (present key) and within the unknown key (final key), determine CAPO positioning on the guitar, determine the number of sharps or flats in a particular key signature and more.

The transposer is comprised of two octaves of the chromatic scale printed on a fixed circular outer dial. These scales are repeated a second time on the small rotating inner dial. A middle dial, serving as a tone pointer or index, contains the digits 1-7 (diatonic scale pointers) and five asterisks (*) designating the intermediate semitones. Manipulation of the two rotating dials allows the user to perform many musical tasks with simplicity and facilitates understanding of musical concepts.

For more information contact The Doreen Allen Company.