Microsampler looping question

[Mr53rg10]

Hello,

I have bought a looper pedal but I feel that two things are missing in it:
1) the possibility to time stretch a loop
2) the possibility to change the pitch of the loop

I read that the microsample can timestretch a sample, but also in loop mode?
And can I record something with the mic, for example a beatbox pattern, and have it mapped along the keyboard so that each key play a different note/pitch of that sample, in loop mode?

Also, I will record my own samples in real time on stage, I will not work with premade samples. I will sing, beatbox, and sample/loop that.
I would like to understand which are the limit of the microsampler for a realtime sampling/looping live performances experience.

Eventually feel free to suggest other korg or non korg units which can make what I want.

Thanks!

[Mr53rg10]

Any news?