[LAD] midi beat clock

Gabriel M. Beddingfield gabrbedd at gmail.com
Sat Feb 20 20:21:12 UTC 2010

On Sat, 20 Feb 2010, Pedro Lopez-Cabanillas wrote:

>> this "tick" signal (0xf9) must be (is it?) some leftover from ancient
>> midi times, if ever used effectively. i fail to recognize its use but
>> being just, uh,... _undesirable_ noise:)
> 0xf9 is Undefined (Reserved), according to:
> http://www.midi.org/techspecs/midimessages.php
> It is an useful site, because the official MIDI specification is not published
> online my midi.org, but it is not an official source. I would like to know
> the origin of this "tick" 0xf9 message. Is it an addition from some
> manufacturer?

Good point, Pedro.  I think your right, it smalls like a 
vendor extension.  FWIW, elsewhere on the same site 0xF9 is 
also marked as unused.


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