VCO.MUS.2
Analyze and compute the relationship between frequency and musical notes.
Frequency - The number of cycles per unit time. The SI unit for frequency is hertz (Hz), named after the German physicist Heinrich Hertz; 1 Hz means that an event repeats once per second. Designated by a lowercase f.
Hertz - The unit used to represent frequency (Hz)



Play the keyboard notes of the Werkstatt and modulate the FREQ knob to hear the relationship between frequency and musical pitch.
Jumper Cables
Begin by setting the Werkstatt to match the settings in Figure 1.
Figure 1. VCO exercise settings
By playing the left most button followed by the right most button you will hear a pitch relationship known as the octave. This means that the lowest note is doubled in frequency equaling the highest note.
As you change the FREQ knob you will hear the frequency increase in a non musical linear fashion. Compare this change to the notes played by pressing the keyboard buttons. The musicality of pressing the note buttons over playing the FREQ knob is because the frequency relationships are determined by the equal temperament formula.

Using twelve tone equal temperament determine the frequency and MIDI values for the following notes.
1. A two octaves above A440.
2. F same octave as A440.
3. G# one octave below A440.
4. C three octaves above A440.