Muselab identifies the electrodes as 0, 1, 2, and 3. But which electrode on the headset do each of these correspond to?
0=TP9, Left ear
1=AF7, Left forehead
2=AF8, Right forehead
3=TP10, Right ear
Note that the position of AF7 and AF8 will depend on head size. On other heads, these may be closer to FP1 and FP2.