HOW TO TUNE RUBOB

The first (bottom) pair of strings is tuned on «A» (of first octave). The second (middle) pair of strings is tuned on «E» (of first octave). The third (top) string is tuned on "B" (of small octave). Besides, depending on what composition will be played, the third string can be tuned on «A» (of small octave) and the second pair of strings can be tuned on «D» (of first octave).