Keys and MOI

[Richard Brekne]

If I may,

I think Vince is saying that if you start off by insuring a nice even
strike weight curve, then hammer and shank MOI is going to neccessarilly
have a nice even graduated curve as well. If then you follow that by
installing an equally even Front Weight curve that uses consistant
pattern placement of leads, then you will also go a long ways towards
getting Key MOI even.

So.... I think he was talking about total MOI, but underlining that and
even Key inertia as part of that picture will be noticable compared to
an uneven set of keys. Thats my experience as well.

Since we still havent identified precisely what level of play is needed
before MOI dominates the feel or touch of the action, I'n no so sure we
can really be so sure of how important even key leading is.

Cheers
RicB



James Ellis wrote:
> 
> Yes, Vince, evening out down-weight, up-weight, balance weight, and
> friction, as felt at the keys, does make a big difference to pianists.  I
> have done it many times.  But in your case, are you sure you are talking
> about "moi" (moment of inertia), and not something else?  If so, please
> tell me how you go about evening out total action "moi" while working only
> with the keys?
> 
> Sincerely, Jim Ellis
> 
>