Re: dynamic and midi velocity

[Francisco Vila]

2010/3/6 Reinhold Kainhofer <address@hidden>:
> Am Samstag, 6. März 2010 08:47:56 schrieb David Raleigh Arnold:
>> Ideally the volume should be preset for each instrument according to
>> ratios expressing the relative natural loudness of the instrument, IOW
>> set it and forget it, and only velocity should be used for dynamics.  That
>> is obviously the purpose of the design.  Why fight it?  No good can come
>> from twiddling the volume in the middle of the performance.
>
> I know several choral pieces where the dynamics change on a single note. E.g.
> in Reutter's " Ecce Quomodo"  there is a whole note with p on the first two
> beats and f on the last two beats. This cannot be expressed by velocity, which
> is modelled after a keyboard, but is unable to express dynamic changes other
> instruments are able to do.
> Similarly, an organ swell on a single note cannot be done with velocity, but
> only via volume.

there are also channel pressure and polyphonic pressure. Not much used
and not very compatible, though

-- 
Francisco Vila. Badajoz (Spain)
www.paconet.org , www.csmbadajoz.com