I was looking for bugle calls and found the mother-lode. On the U.S. Army Bands website all the military bugle calls are available, both in visual and audio. If you click the link, it brings us the sheet music for the call, and click the speaker and you get to hear the call.
Most of these bugle calls date back centuries, but still resound today on bases all over the world. Most are very short, so you can listen to them all in a matter of minutes. There are several I didn’t recognize but they are cool.
Now I’m going to have to research bugle calls.