This manual provides instructions for the Yamaha Electone BK-20A, a musical instrument featuring three keyboards: an upper manual, a lower manual, and pedals. It details the layout of the keys and pedals, explaining the traditional keyboard method and the specific arrangement of the 44-key manuals and 13-pedal section.
The guide explains the operation of the Tone Lever System, which allows for precise control over instrument voices (such as Flute, Brass, and Strings) across the upper, lower, and pedal sections. It covers the use of harmonic levers, effect controls like Tremolo and Reverb, and the Auto Rhythm Section. Additionally, the document lists numerous preset combinations for various musical styles, including Classical, Jazz, Rock, and Novelty sounds.
| Upper Manual Levers | 9 voices |
|---|---|
| Pedal Voices | 2 voices |
The pedal section provides control for 2 voices.
The upper manual has 44 keys and the lower manual has 44 keys.
The instrument includes 13 pedals.
There are 9 voices for the upper manual, 5 voices for the lower manual, and 2 voices for the pedals.