Two pattern change questions: MIDI messages and odd time signatures

[slicetwo]

I have a Mozaic script on my iPad that’s made to send PC messages 0-128 to my Elektron boxes. That covers banks A-H fine. With the addition of the OT, I wanted to edit the script so I could also send PC messages for banks I-P. When I hook the OT up to a MIDI monitor, it seems that if the OT is sending the same PC changes for banks A-H that it is for I-P. It’s also sending 2 different MIDI messages

This is for pattern A01. If I then go to any other pattern in banks A-H, the first thing with the BF is no longer triggered.

CH:16 Ctl Num: 0 Val: 0
14:29:46.630 - BF 00

CH: 16 Program Change: 000
14:29:46.630 - CF 00

When I go from banks A-H to banks I-P, the first message is similar to the first one above, but instead of BF 00 it says BF 00 01. Any messages after that for banks I-P mirror the A-H banks in terms of PC change value.

So my question is: What’s the deal with the BF thing?

Also, I’ve noticed that occasionally, I’ll trigger the PC in Mozaic, for example for pattern G09, and it will load fine on the Digi boxes, but for some reason, it’ll trigger O09 instead on the OT.

Another question: I have a song in 5/4, so each pattern is 40 steps long. I want to have the patterns change after 10 beats, but I can only do factors and multiples of 16. Is there no way to get it to change after other beats rather than based on pattern length?

[sezare56]

@slicetwo

So my question is: What’s the deal with the BF thing?

A bank message AFAIK.
You should be able to change pattern IP sending a bank change message on channel 16.
B means Control Change, F channel 16, 00 is bank CC.

@slicetwo

G09, O09 instead

Apparently same program change value, but a different bank.

@slicetwo

pattern length?

Elektron Octatrack: Track Trigs/Multiplier to Master Length Calculator

If you’ve spent any time with an Elektron Octatrack, you’ve invariably used polymeter’s at some point. And once you begin using the track TEMPO MULTIPLIER, calculating the pattern MASTER LENGTH can become tricky. So I wrote a simple script to work it out for me. I guess this might be useful to more people that just myself, so decided to share a page: to work out each pattern’s MASTER LENGTH in a simple, Octatrack centric way. Hope it is of use. http://novinyl.net/octatrack.php

[slicetwo]

I’ll check out the bank change functions of Mozaic.

As for the pattern length thing, that’s not what I was looking for, actually. That guy made a least common multiple calculator for the OT, though, which I totally forgot about. I’m going to use it to show my 6th graders (who I’m literally quizzing on LCM this week) an actual application of the concept!

I’m actually trying to change the pattern chain behavior. In the pattern settings, you can set the chain behavior. I want to set it to 10 (as opposed to 16 for my 4/4 stuff).

[PeterHanes]

@slicetwo

When I go from banks A-H to banks I-P, the first message is similar to the first one above, but instead of BF 00 it says BF 00 01. Any messages after that for banks I-P mirror the A-H banks in terms of PC change value.

So my question is: What’s the deal with the BF thing?

Previously on Elektronauts:

How to change patterns via midi?

The OT responds to MIDI Program Change messages. Because it has 16 x 16 = 256 patterns, the patterns are split into two groups: banks A to H and banks I to P. If your current pattern is somewhere in banks A to H and you want to select a new pattern somewhere in bank A to H, you just need to send a MIDI Program Change message with one of the following values: 0 = pattern A01 1 = pattern A02 and so on until 127 = pattern H16. If you were somewhere in banks I to P, the values would be: 0 = …

@slicetwo

I have a song in 5/4, so each pattern is 40 steps long. I want to have the patterns change after 10 beats, but I can only do factors and multiples of 16.

What do you mean by “I can only do factors and multiples of 16”. Do you mean that this is a limitation of the Mosaic script?

@slicetwo

Is there no way to get it to change after other beats rather than based on pattern length?

The OT can change pattern according to the pattern scale setting in Normal mode or according to the Master Length setting in Per Track mode.

[slicetwo]

The mozaic thing was a separate question from the pattern change. I am getting that the answer is no. Haha.

I’ll check the other thread. Thanks!