EP 1760691 A1 20070307 - KEYBOARD INSTRUMENT
Title (en)
KEYBOARD INSTRUMENT
Title (de)
KEYBOARD-INSTRUMENT
Title (fr)
INSTRUMENT A CLAVIER
Publication
Application
Priority
JP 2004008717 W 20040621
Abstract (en)
[OBJECT] To provide a keyboard instrument that is easy for a beginner to use and less in the cost. [MEANS FOR SOLVING] A keyboard instrument 10 includes a keyboard portion 4 constituted only of keyboards 21 in which tone intervals are arranged so as to repeat an arrangement of whole step, whole step, half step, whole step, whole step, whole step and half step. That is, without disposing black keyboards that can alienate a beginner from a keyboard instrument 10, the respective keyboards 21 are arranged. Thereby, while securing the respective keyboards 21 necessary for performing a piece of music, a beginner is allowed lightheartedly addressing a keyboard instrument 10 and playing readily. Since the number of keyboards 21 preparing for manufacturing a keyboard instrument 10 can be reduced, the lower cost can be achieved.
IPC 8 full level
G10H 1/34 (2006.01); G09B 15/00 (2006.01); G10C 3/12 (2006.01); G10C 3/28 (2006.01); G10H 1/20 (2006.01)
CPC (source: EP)
G10C 3/12 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1760691 A1 20070307; EP 1760691 A4 20100707; EP 1760691 B1 20131023; CN 1820303 A 20060816; CN 1820303 B 20100609; JP 3986547 B2 20071003; JP WO2005124737 A1 20080417; WO 2005124737 A1 20051229
DOCDB simple family (application)
EP 04746186 A 20040621; CN 200480019394 A 20040621; JP 2004008717 W 20040621; JP 2006514637 A 20040621