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●Improvement of tone quality and intonationl
(The improvement might become easing treatment by the factor at the
level of the design. )
1)Intonation problem of "A1 & A2"
2)Sound of the bass region is not good.
3)Sound and the Intonation of Low-D1 are not good.
4)Intonation of Bb2 is not steady.
5)Problem of intonation and tone quality of Fis1
6)Intonation of "B1 & B2、C2 & C3" is lower, and a sense
of resistance
7)Intonation of " Cis2 " is unstable, there is a sense of resistance.
8)The tone quality of "Open F2"is a direct sound and the intonation are higher.
9)Intonation of "G2" is higher.
10)Eb3、E3、F3 resistance is strongly stifling. Moreover, intonation is
lower.
11)The material and the diameter of Tone hole pipe are improved.
12)The intonation of High-B3 is higher, and the tone quality of High-C4
is a direct sound.
●Isn't there such worry?
KBW cancels it. Figure displayed by the click is one remodeling
example.
1）Operativeness problem for High-keys group
2）Load problem of left hand fore-finger and arm
3）As for operativeness, Key related to right hand thumb E-key is not good.
4）As-Bb trill key cannot be operated well.
5）Problem of Low-Bb key concerning left hand thumb
6）Operativeness problem of left hand thumb C-plate key
7）The right hand thumb doesn't reach Back-As key.
8）When the left hand thumb pushes Speaker Keys group, C-plate key hinders.
9）The operativeness of left hand thumb Low-keys group is not good.
10）The right hand thumb doesn't reach Rock-key.
11）Operativeness related to right hand little finger F-key is not good.
12）The right hand little finger doesn't reach As-key.
13）Problem of uniting part of Joint Space problem of Bass-joint and tener-joint
14）Problem of interval between High-keys group and thumb of left hand