ComfortableInClouds

Hi - I am trying to use Max to control the playback position of sequences within an MPC. I had gotten this to work a few days ago, but for some awful reason, it seems I deleted that portion of my patch. I thought it would be easy enough to implement again, but for some perplexing reason the MIDI message does not seem to be going through.

This is not a problem with MIDI itself, as every other system message I am sending the MPC (timing tick, start/stop song) is being received. It must be, therefore, a problem with formatting. I know, however, that song position's decimal midi # is 242 (F2 in hexadecimal = (15x16) + 2 = 242). I have tried all manners of comma's within my patch, to no effect. Here is what I have tried.

If anyone can recognize how I am sending this message incorrectly, I would be tremendously grateful. Thanks.

problems-changing-song-position-in-hardware-seq-via-midi

The correct message is (242 $1 $2), with $1=LSB and $2=MSB.

But your patch doesn't work because the LSB sliders are hidden behind duplicates..

thanks broc, it's working. i was curious how the LSB and MSB determine the song position exactly?

The resolution of song position is 16th notes.

So LSB corresponds to 16th notes and MSB to 128*16th notes (= 8 bars).

Here is a patch to control the song position with bar slider and 16th slider.

The resolution of song position is 16th notes.
So LSB corresponds to 16th notes and MSB to 128*16th notes (= 8 bars).

Here is a patch to control the song position with bar slider and 16th slider.


very cool. thanks for the patch. going to have fun creating phasing sequencers between mpc patterns and playback position :-)

Problems Changing Song Position in Hardware Seq via MIDI