Today I am releasing a new version of Fireworks Show Creator.  I've been able to incorporate a number of improvements over the last week or so:

• More songs!  You can now pick from among seven different soundtracks for your fireworks show and the list keeps growing.  I've added the national anthems of France and the UK as well as a couple of contemporary tracks.  Note that all songs are in the public domain or CC licensed.  Attribution has been given where required.  If you are aware of recordings of other national anthems to be included in the app, please send me a link.
• Copy shells:  You can now open a shell in the fireworks editor (double-click on its marker in the timeline) and click the COPY button to create an identical shell fired from the same gun approximately 0.5 seconds afterwards.  
• Add salutes to any shell:  A salute is a loud report and flash that sounds during or after the shell break.  Previously, you had to select specific shells with salutes added to them, i.e. "Basic peony with salute."  Now I have added a control to the firework editor that allows you to assign up to three salutes to whatever shell you happen to be working on.

Please download Fireworks Show Creator and enjoy it.  Feedback is much appreciated!