I have been a monthly member of Macprovideo for quite awhile and have found it invaluable to be able to look for info on any topics I need in the videos, the articles and this forum. This is however my first post here, so a big Hi to everybody! I am working on a project to try to create MIDI tracks of a piano piece to be as close a copy to an audio recording of the pianist playing live as possible. I first imported the mp3, beatmapped the file to create various tempo changes, then imported the MIDI file(which is a very brand constant velocity but generally note accurate copy of the same song) and now am trying to make any corrections with timings and dynamics. Now when I am trying to listen to a few bars at a time by looping, I found that whenever the playhead gets to the end of the loop, it tends to stutter and jump back a little before repeating again, and when the loop is played again, the MIDI tracks falls behind the audio track by a split second. This repeats with every loop and by the third or fourth times, the delay of the MIDI track can be more than a full beat long behind the audio track. What would be causing this and how am I able to correct it. Obviously I would need to listen to every phrase repeatedly in order to match the MIDI to the audio closely and with this odd behavior it gets very difficult to say the least! Also if there is an easier way to accomplish what I am trying to do, I would greatly appreciate it as well. :) I am using Logic Pro X 10.0.7 under OSX 10.9.4 on my MacbookPro (Mid2009, 8G RAM)