[gmpi] Re: 3.9 Time Formats

  • From: "Koen Tanghe" <koen@xxxxxxxxxxxxxxxxxxx>
  • To: <gmpi@xxxxxxxxxxxxx>
  • Date: Tue, 17 Feb 2004 23:32:25 +0100

On Tuesday, February 17, 2004 8:11 PM [GMT+1=CET],
Chris Grigg <xxxgmpi-public@xxxxxxxxxxxxxxxxx> wrote:

> - Tempo and time signature of a given musical timeline are set in
> only one way: with Tempo events and Time Sig events.


> - Plugs can receive Tempo and Time Sig events just like any other
> event types.  Since not all plugs will care about them, Tempo and
> Time Sig events will only be supplied to plugs that request them.


> - Plugs can generate Tempo and Time Sig events like any other,
> however hosts are not obligated to honor them.  This is to avoid
> timeline management chaos; typically a host will be extremely choosy
> about which (of the potentially many, including internal generators
> in the host) sources of Tempo and Time Sig events make sense for the
> particular application.

I can live with that (as long as the host I'll be using will acknowledge it

> - From GMPI's perspective there is no such thing as a 'tempo map' per
> se.  However sequencer-style hosts will typically record Tempo & Time
> Sig events in tracks, and those tracks could be considered tempo
> maps.  Querying the tempo & time sig at any given time in a piece
> would in many cases constitute long look-ahead, which is out of scope
> for realtime GMPI.

OK (realtime GMPI).

I think this sounds good.


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