User manual

It is important only that you remember the relevant pitch ratios since the fundamental
frequency can be any value; these are summarised below:
To obtain the familiar Do, Re, Mi, Fa, So, La, Te, Do (the major scale) we are all so
conversant with; first feed in a constant signal, possibly a sine wave, to the pitch change
channel ensure that the pitch ratio in store 1 is 1. Now set store 2 to 1.122, store 3 to
1.26, store 4 to 1.335 etc., etc., culminating in entering 2 in store 8. If we now return to
store 1 and keep the ‘D’ key depressed whilst thumbing through the eight store locations
in sequence the major scale will be audible.
The above can be modified to suit any scale characteristics and is only restricted by the
operators imagination.