TC Electronic PolyTune Classic - Manual (Page 11)

11
6 string bass - out of tune
6 string bass - In tune
Mode switching
Via TC Electronics “Monopoly” detection technology, PolyTune™
detects whether you are playing one or several strings, and
automatically switches between Chromatic and Poly mode
accordingly.
For the most accurate tuning of electric guitars in Poly
mode, we have found that the best result is achieved by
selecting the guitars neck pickup and using the thumb to
strum the strings.