Programming tasks

1. Add another canvas tag. It should have the id dial2 and the nx type of dial. Check that it changes the sound when you move the dial.
2. Add a line to the dial1Changed function so that moving the dial changes the value of the lfo's frequency. Put it in an appropriate range for the LFO.
3. Challenge: add another dial to control the 'depth' of the lfo. The depth is how much it adds or subtracts from the frequency of osc.

Hit below for smartphone start