Indicate if either stereo or mono versions are preferred or acceptable. Printed music Indicate if the patron wants printed music rather than recorded music. Classical music Prolific composers such as Haydn or Vivaldi can be a problem because there are various numbering systems for their works. When requesting a work, be as specific as possible and give as much information as possible, including opus number and any other known numbers. Include any alternate and popular titles of the work needed, as well as particular instrumentation, if needed.
Musicals Indicate if the patron wants the soundtrack of the motion picture or stage performance.