Re: MIDI keyboard

[David Kastrup]

Richard Shann <address@hidden> writes:

> On Tue, 13 Aug 2013 12:17:17 +0200
> Johan Vromans <address@hidden> wrote:
>
>> Federico Bruni <address@hidden> writes:
>> 
>> > Denemo already supports this two pass input, you can find a
>> > screencast on Vimeo.
>> 
>> Yes, I did look at Denemo. With Denemo you have to enter the durations
>> using pre-defined 
>
> you can choose any key press you want for this
>
>> keypad keys. In other words, you need to know
>> beforehand whether the next note is 4, or 8, or 2. and so on.
>> 
>> I would like to enter that part of the information using  rhythmic
>
> here is your problem. You are hoping that the timing of your keypress
> could be interpreted and a duration of note estimated from it. Such
> systems have been tried many times, and are offered by programs that
> don't care if you succeed or not, as long as you buy the program. They
> don't work because of the subtleties of timing, rests and notation
> (consider, 1/4 note tied to 1/8 note is the same duration as dotted 1/4
> note).
> Well, I would like to be proved wrong; the moment you hear of a way of
> doing it I promise I will implement it in Denemo: everything is there
> just waiting for someone to invent the algorithm.

Well, it's easy enough: store the exact times, then adjust the estimated
musical durations as the user enters correct durations and/or bar lines.
If you integrate a human into the process interactively, the task
becomes less complex and followup errors are only temporary.

-- 
David Kastrup