You may want to get some audio recorder and then mix it in later. My son just went with the Tascam DR-07.
Hello! Do you have any recommendations for an HD camcorder in the $300-$500 range that has especially good audio (or is compatible with an external microphone)? I will be using the camcorder to record my students' piano recitals, as well as to record online lessons within my studio. I use iMovie, so whatever would be most compatible with a Mac would be helpful. Thank you.