reading this thread here:
http://www.elektron-users.com/index.php?option=com_fireboard&Itemid=28&func=view&id=141777&catid=18
got a cool idea to make a realtime harmonizer, maybe using neighbour tracks? cheers for any advice 
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Not got any advice Iâm afraid but thanks for posting this - has given me a few ideas. I canât for the life of me get the Octatrack recording on different pitches though!!! I must be doing something stupid but the minute I tweak the pitch the Flex in question just turns to â+â mode rather than record. Anyway, apologies for hijacking a thread with a rant haha.
EDIT - well seems I can get it working as long as I dont use the first trigger (when following the instructions Neil put upâŚ). Any idea why? Would be useful to know in understanding how the Octatrack works. Is it to do with recording and playback triggers sharing the same trigger?
I have to try this sometime. Hereâs Neilâs original post:
I wish I could put together a decent demo of this - I just canât find the right material to show it off.
I had an idea to turn the OT into a harmoniser. I assigned a Flex machine to the first three tracks and set them all to RECORDER1. Then I set the PTCH of Track 2 to +3.0 and PTCH of Track 3 to +7.0
Place a couple of simultaneous playback triggers on all three tracks (i.e. same trig positions)
Then go into the Record setup for Track 1. Assign the correct input and a length of, say, 16. Add a one-shot record trig to the first step.
Feed something into the OT while itâs playing and then hold T1 and press ENTER/YES to record. Youâll get a minor chord of whatever you put into the input. Instant harmoniser! 
I then Scene-locked the PTCH of Track 2 to go from 3 (left) to 5 (right) and Track 3 from 7 (left) to 10 (right). Then as youâre playing you can swipe the x-fader from left to right to get variation on the chord - left 0, 3, 7 and right 0, 5 10
Remember you can hold down T1 and ENTER/YES and the one-shot recorder will be constantly armed. Let go when youâve got something good.
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Thanks for the tip - this has worked out really nicely. Cheers
Hey, I was thinking about this recently, but I was thinking about a dynamic harmonizer that you could play with your keyboard. The Retrokit RK-002 smart cable lets you play the Digitakt polyphonically by rotating the MIDI channel at each key press, if you could make this work on the OT, do you guys think that you could instantly play the incoming signal polyphonically with your keyboard?
Like 4 Flex machine listening to Recorder 1, and each of them receiving a different MIDI note thanks to the RK-002 cable, and done! You could like sing or speak on a steady note and reharmonize the stuff in real time! I donât own a Octatrack yet but this seems doable from what I read, any thought on this? Cheers.
I once tried to do a shimmer reverb on the OT with resampling on different tracks, set to different pitches.
When I had three tracks with one track playing back unaltered pitch, one track pitched up an octave and one track pitched down an octave it sounded massiv, not really pleasing, though^^
Have to try pitching live playback of recorder buffers later.
That sounds like a huge playground!
When you pitch up audio, the playhead will eventually try to play audio thatâs not (yet) there.
By microtiming the recorder trig backwards and/or the sample trig forwards, there will be more material in the recorder buffer.
How much you have to microtime the trigs depends on how high you want to pitch up.
@sezare56 might be able to answer your question. 
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Aha, thank you for summoning the OT guru for me! But the issue you just mentioned might be a problem for this too, I didnât thought about it but yeah if youâre trying to pitch something up in real time the playhead will go faster than the recording headâŚ
In my case a workaround might be to have a high note incoming and pitch down everything, like singing a C3 to get a C2, E2, G2 chord (but that sounds exhausting).
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This thread is a blast from the past! Cheers though,I did conclude as much myself after about a further 3 years of OT use 
glad you got sorted
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Haha 
Could have very well been that youâre still busy trying to figure out the trigless locks vs. trigless trigs mystery or something like that, though^^
Edit
Doesnât sezare also have the Retrokit RK-002?
Anyways, if the midi processing is sorted out, it might be a good idea to dedicate one side of the Octatrack (Tracks 1-4) to pitching audio up and the other side (Tracks 5-8) to pitching audio down and just set microtiming accordingly.
With scenes also combinations of up/down pitched audio and different pitches/chords would be easily accessible.
Maybe T8 as master track to glue tracks together.
Just some ideasâŚ
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Doable with Timestretch on, pitch shifting. Requires microtiming delay.
@Schnork yes I have a RK002 but I used a Midipal for polyphony (midi channels dispatcher).
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Itâs not as fun, but if you want this kind of effect and donât get it working on the OT thereâs always the old Digitech MIDI Vocalist rack unit from the 90s, it has a mode that does exactly what youâre describing. Detects the pitch of the incoming signnal, and generates up to 5 pitch shifted versions from incoming MIDI notes. Everything from the 90s is more expensive these days but last time I looked you could barely give these things away, becasue all the things that make me find them charming (weird glitches, not very good pitch shift algorithm) make them terrible for what they wee actually designed for (lifelike ADT and vocal harmonies). I actually gave mine away in 2014 because it wasnât worth selling, and then regretted it for a while, but the guy I gave it to ended up giving it back a couple years later -thatâs how little people cared about them a couple years ago, at least.
Anyhow, I have a MidiPAL that can do the same channel cycling the RK-002 does so maybe Iâll give this a try this afternoon and see how it works for me. For real time pitch shifting I usually find I can microtime the play trigger enough to shift up about a diminished 5th before the delay got too unbearable, but if Iâm using it to generate harmonies that play WITH the dry signal instead of just pitching the dry signal up, then the delay wonât really matter much - I could even see putting the playback trig on a later step entirely to get a kind of call-and-response effect.