The tab player lets you hear the tab you're editing to make sure the notes and timing are correct. It will also play individual notes when you place them on the fretboard, as well as all notes in the selected step when you click on a step or set the note length. The tab player uses ASIO to play low latency audio on your device. Many sound cards natively support ASIO, but some do not, in which case you'll need the ASIO4ALL driver to use the audio features of QuickTabs. See the ASIO4ALL section below.
If you need the ASIO4ALL driver and do not have it, QuickTabs will detect this and change the available options in the Player section of the context menu. If your Player section contains the normal Play/pause, Loop, and Metronome options then you do not need to do anything and the player is ready to use. If it contains Install ASIO driver and Check for driver again, you will need to select Player->Install ASIO driver before QuickTabs will be able to play audio. This will automatically download and open the ASIO4ALL installer. Once you have finished installing ASIO4ALL through the installer, use Player->Check for driver again to enable audio in QuickTabs.
You may start playing from the currently selected beat using Space or Player->Play/pause. The player also allows you to enable and disable a metronome as well as loop mode through the Player->Loop and Player->Metronome context options.