two finger moves

[klemen...@gmx.at]

Dear Andrew, dear Touchkeys-Community,

maybe You have some minutes for my problem.

State of the art:

Mac OSX, 10.9, Ableton Live 9 Lite, Pianoteq, UVI Workstation, Touchkeys.

I still use Touch keys in standalone mode, because I will only stick it on my keys, if I have reached my goals.

My goal:

I want to play on a virtual Piano, that is able to prepare gradually single notes in the kind of a John Cage Piano. (Real prepared pianos are quite unflexible to make changes of preparation, and there I see really interesting advantages in the use of  sampled instruments, especially with Touchkeys)

For the „normal“ pianosound I use Pianoteq (standalone mode)

For the prepared piano I use IRCAM prepared piano, a multi instrument that is used with the UVI workstation. I run it in the Ableton platform.

As You can see in the film, the IRCAM prepared piano gives the opportunity to prepare each single note individually and to give each single note an individual volume. The volume-knob is programmable to control it with a MIDI-controller.

My idea was now, that I choose a move on touchkeys, that is normally not used, when playing the piano - such as the two finger mode - to control the volume knob.

This is not working, because even a single fingertouch brings the volume knob back to zero. My hope was, that if I choose the two finger mode, a single fingertouch will not send any MIDI changes.

Thanks to everyone, who has an idea

Klemens 

[Andrew McPherson]

Hi Klemens,

Nice idea. So that I understand better what you're trying to do, can you clarify? Is it that when you play with one finger (i.e. normally), you get regular piano, but that when you play with two fingers, you get only the prepared piano sound? Or is it that you want to slide two fingers around to change volume? If you can give an example of how the playing would work and what kind of messages should be sent that would help figure out how to implement it.

One note about standalone mode is that since it triggers on the first touch, it may be hard to get a clean two-finger touch since almost inevitably one touch or the other will register first. You might try simulating an installed keyboard by putting the TouchKeys next to your keyboard and then playing the key with one hand and the touch sensor with the other, to see if it makes two-finger control any easier.

Andrew

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[klemen...@gmx.at]

Dear Andrew,

sorry for my late answer.

I will try to answer Your questions:

 Is it that when you play with one finger (i.e. normally), you get regular piano, but that when you play with two fingers, you get only the prepared piano sound?

>>this would be a very interesting way, but its difficult to get: I would need the opportunity to mute/demute single notes on pianoteq per midiCC, but thats not possible. 

....     ....   .... But maybe its very simple: All I need is, that the two-finger-touch sends on anothe midichannel! You are witness of a realtime-thinking-and-writing-process :-) 

This is a superbe idea, thank you very much! I will try it.

Or is it that you want to slide two fingers around to change volume?

>>Yes, that was my first idea: I mix to the "normal" pianosound of Pianoteq the prepared sound of the IRCAM-prepared instrument, when I do a Two finger Distance move on Touchkeys, to raise the Volume of a single prepared sound. This is possible, because IRCAM has the opportunity, to control the volume of each single note. In fact, its a compromise solution, because the normal sound is still there, but there a many true prepared pianosounds too, which let hear a mix of a normal and a prepared sound. 

 

If you can give an example of how the playing would work and what kind of messages should be sent that would help figure out how to implement it.

One note about standalone mode is that since it triggers on the first touch, it may be hard to get a clean two-finger touch since almost inevitably one touch or the other will register first. You might try simulating an installed keyboard by putting the TouchKeys next to your keyboard and then playing the key with one hand and the touch sensor with the other, to see if it makes two-finger control any easier.

ok, thats an important note! :-)

maybe this is the only problem. I will try it out, before I steal your time with a longer explanation of the implementation.

thanks a lot

Klemens