The Yamaha Electone B-4 is a versatile electronic organ featuring two 44-key manuals, a 13-key pedal board, and exclusive Tone Levers for sound control. The instrument includes advanced features such as reverb with balance controls, vibrato, and the unique Spacious Sound Tremolo.
Both the Upper Manual and Lower Manual have 44 keys each.
The pedal keyboard contains one octave of notes, with both ends being 'C'.
The instrument is tuned to 440 cycles.