Play the composer's music during seat work or during free time. You can also have recordings on while students are entering class in the morning or after lunch and recess time. After a week, ask students to begin to identify some of the works that they are hearing. You can also ask them to write in their journals while listening to any of the works and express how it makes them feel. The key here is to marinade them in the composer of the month's work.
Students can come up with more ideas.
Students can listen to a variety of compositions and read what the authors have to say. They can then vote on their favorite compositions and send comments to the authors. It is motivating and gets students interested in the dynamics of music compostition. You can use backflip on this site to do this. All you would have to do is create the folders and then search the web and put links on you site.