Classical. Mozart's Divertimento No 12 in E-flat K. 252 was written in 1776 for a wind quintet of 2 oboes, horn and two bassoons. In keeping with other Divertimenti, the style is light and casual. Stephen Gamble has arranged this work for brass quintet in the key of C. It is a joy to perform and to listen to. The music is about 12 minutes in length and is appropriate for advanced performers. Instrumentation is 211.01 (2 trumpets, horn, trombone and tuba). Trumpets in C or Bb. -the publisher