[LAU] midi clock

[Paul Davis]

On Fri, 2008-06-06 at 22:08 +0200, becks wrote:
> Hi all,
> i have one midi device that send midi clock info.
> this clock is used to set arpeggios and LFO time, and maybe other stuff.
> this device don't have lcd screen, so i can see exactly current bpm.
> 
> 1) how compute (easily) bpm over midi channel? (with aseqdump i can
> see clock message repeated over and over)
> 2) how to send standard midi message to set new bpm?

there really isn't any such message. its one of the central issues with
sending MIDI clock, because it presupposes that the receiver knows what
the sender means.

MIDI clock involves, IIRC, 24 messages per quarter note. you can derive
tempo from the rate of arrival of clock messages.