Feedback.

So I have now gotten the first copy out to quite a few people and have gotten some great feedback.

This post is to store that feedback. Here goes:

1. Make the pitch detector less sensitive to background noise. (Brad and Tiffany Bushman)
2. Make the flashcards look more professional. (Sherise Payne, Sam Baird)
3. Let the user sing the correct note for longer before going to the next flash card (Tiffany Bushman's family)
4. Doesn't work right on Macs yet. (Bart Bradshaw, Rick Bradshaw)
5. Let the GUI show the user the measured amplitude. (Rick Bradshaw)
   
6. Play a reference note so that the user can figure out where they are. (Bushmans, Gina, Sam Baird)
7. Add levels of difficulty so that beginners can have fun too. (Gina, Bushmans)
8. May not work on PCs if the users don't have an updated JRE. (Ryan Williams, Karen Tate)
9. Enable the user to enter in a sequence of notes so that they can make their own drills. (Sam Baird, Gina Bradshaw, Bushmans)
10. Show the number of flash cards so that the user knows how fast she is progressing. (Heather Cook)
11. Create a drill to help people sing intervals. (Bushmans)

Obviously there is plenty of work to do. I intend to edit this post every so often to add further ideas and feedback.