TabTrax 4.0 provides powerful tools for drummers to analyze their accuracy and playing style using the mp3 overlay feature.
Create or download a drum track or drum lesson (there are many Modern Drummer lessons available at lessons http://2112design.com/tabs/Modern Drummer/).
Practice the lesson or track with TabTrax. When you are ready, record your own playing on your computer with audacity. Audacity is a free tool that lets you record audio, edit it and save to mp3.
Import the mp3 file and synchronize it to the drum track as described in the help file.
Look carefully at the display to see and hear how close you are to the computer generated beat of TabTrax.
TabTrax 4.1 (April 2013) will have more advanced features to record your drums directly into TabTrax and provide statistical data about your performance.