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Re: dynamic and midi velocity


From: Bertalan Fodor (LilyPondTool)
Subject: Re: dynamic and midi velocity
Date: Thu, 18 Feb 2010 20:35:57 +0100
User-agent: Thunderbird 2.0.0.23 (Windows/20090812)

Tim Reeves wrote:
Peter Chubb wrote:
    
Lilypond uses a separate volume channel, rather than velocity, to
control MIDI dynamics.  There's a perl script `ConvertToVeolcity.perl'
that can convert the midi output and add velocity info to each note.

      
That's a bug then. Musically \p means velocity change and not volume.
    



Bert,

I'm curious what you mean by this comment. \p does not mean low volume but 
low velocity?
Do you mean you use (when you play an instrument) a low velocity (air 
velocity, velocity of striking a key or drum, velocity of bowing, etc.) in 
order to create a low volume (sound level) and so it's the velocity that 
you have to control?
  
I definitely talk about playing a keyboard instrument. It is quite easy to feel the difference between volume and velocity if you think about that:

When you see p in the score, you play with less force on the keys,  with lower velocity.
When you see ff in the score, you play with much force on the keys, with high velocity.

But you don't touch the volume control in either case. I suppose :)

Bert



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