stretch part.

[Jay Bits]

hey hey!
i tried to play some loop samples and want to change the tempo of the loops without affecting the pitch. even better would be if i could adjust it in a way, that the loop tempo is changing with the tempo of the midi-clock, so even when i change the whole tempo of a song, the loop is allways in time.  just like the stretch part of korgs esx, if anybody knows what i mean...

[natrixgli]

Spark can't timestretch. It's meant for playing one shot samples of drum sounds.

[Jay Bits]

that's too bad. 
would be a really nice feature. right now i'm using ableton for this, but if that would have been possible, i could controll everything with only one controler. as i'm playing aditionaly some analogue synthesizers i have allready enough hardware in my setup  i want to leave everything that's not necessary at home, when i play a gig.