kesha1 wrote: ↑Mon Sep 28, 2020 7:01 pm
1. Is there a way to control in real time a playing (MIDI) clip transpose with a MIDI keyboard?
2. If yes, could the beginning of transposing be linked to the Global Quantize setting (so, it starts in next bar, or after 4 bars, etc.)?
If not, then why Live doesn't have such useful feature, and what other function could do this?
I have an answer to Question 1 (see below for discussion of Question 2). Way back in 2015 I created TransposerRT (the RT stands for "Real Time") to allow transposition of one or more MIDI tracks on the fly, by playing pitch transpositions from another MIDI track, either by using a MIDI keyboard or by playing a clip. I've used TransposerRT constantly since 2015, and many people have successfully used it too.
That said, nothing in this world is perfect, and TransposerRT is no exception. For one thing, TranposerRT is implemented as two Max for Live MIDI effect devices, so although the devices are freely downloadable at
www.maxforlive.com, you must have Max for Live on your system to use them. Also, some users -particularly those who work on big projects with a lot of stuff going on- report that it can interfere with UI scrolling (for example, when the user scrolls down in the Session view to see clips further down), making it jumpier. Nevertheless, some of the same folks who report this behavior tell me it's not a deal-breaker, in light of the capabilities TransposerRT delivers. If you're still interested, check out the
YouTube video I made, where I discuss the concept and demonstrate TransposerRT in action.
As for Question 2, if I understand it correctly: Since TransposerRT involves sending MIDI pitch offsets from a particular track, then if you wish to introduce quantization, you can record your transpositions to a clip on the Sender track, and use the clip's launch quantization settings to accomplish the desired goal.
And regarding your question as to why Live doesn't have this feature, I do not know; but one of the reasons for me creating the video was so that Ableton could see what I've done and perhaps consider adding TransposerRT to the set of M4L devices that ship with all versions of Live.