Tuning a scroll saw.

[tcorder]

I work as a DT technician in a school and the teacher of the class was showing the boys how to change a fret saw blade. He tightened the blade up to the correct tension and turned to me and said what note is that then. Without hesitation, I whipped out the handy iphone, used the tuner app and told him it was tuned to E. So there you go. According to the DT teacher, E is the correct tension for a fret saw blade. Now we all know.