Chromatone
Comparison Chart of Functions

language_english language_japanese
  CHROMATONE CT-312chromatone ct-312 Wholetone Revolutionwholetone revolution
Key Layout Muto Music Method・MUTO KEN layout
(halftone arrangement + whole tone arrangement)
Muto Music Method・MUTO KEN layout
(halftone arrangement + whole tone arrangement)
Number of Keys 71 keys 88 keys
Width of 1 Octave
(Key-pitch)
approx.14 cm (23mm) approx.11.5cm (20mm)
Velocity Touch Available Available
After Touch Not available Available
Polyphony 64 notes 64 notes (in single mode)
Sound Source 132 sounds 1169 sounds/ 302 combinations
/ 37 drum kit
Rhythm Style 100 styles Not available
Notation Indicator Function (3 line notation) Available Not available
Built-in Speaker Available Not available
Auto Accompaniment Available Not available
Simple Recording Function Available Not available
Connectors Phones, Aux Out, Volume, Damper, MIDI IN/OUT Phones, L/R, Pedal, Switch
MIDI (IN/OUT/THRU)
Electric Power IN (100-240V) OUT(12V)
and Battery Operation (D size x 8 pieces)
IN (100VAC) OUT (9VAC)
No battery operation
(The conversion machine might be necessary for the attached AC adaptor according to the country.)
Notation Holder Available Not available
OEM Supply Source Hong Kong Japan
Manufacturing date 2004.6 2000.12
Size 1100(w)×395(D)×148(H)mm 1030(w)×300(D)×88.9(H)mm
Weight 8.1kg 6.6kg