Hello guys,

I digging here a little. Just would like to thank all of you guys for the help and sharing your knowledge.

Well, in the end, after trying a lot of things I´ve decided to stick to the audio tracks and use Logic X "Flex Time" function to serv my purpose and use the "real chart/Midi" function only on the drums smile. In this way it´s more realistic, just as you mentioned smile

So thank you all!