This is an interactive little page. If you have a violin handy, go ahead and play a note or two, and watch the finger diagrams change. If you don’t have a violin on you, you can try singing instead. Scroll down for details about what’s going on here. What is this? Each diagram shows the violin finger positions for a different scale. When you play a note, the page shows the pitch you’re playing as a magenta line. The closest note will be highlighted in dark blue. If the note precisely go...