Future Retro Zillion Owner Manual - Manual (Page 20)

MELODY
In the Melody mode, you set counters, or select outputs of the shift
register as sources to generate a binary number that then selects one of
the 8 possible notes of a scale to play.
Soft key 1 – 3 sources generate a 3-bit binary number to select 1 of 8
notes of the scale to play. Soft key 4 source determines if the note
programmed in the scale will play transposed up an octave or not.
Source 1 is the least significant bit, source 2 is the next significant bit,
and source 3 is the most significant bit.
The Zillion defaults with counter values of 1, 2, and 4 assigned to
sources 1 – 3, and a counter value of 8 assigned to source 4.
This default configuration will play an ascending scale for 8 steps. Then
play the same ascending scale an octave higher.