how to tune the portuguese guitar
The tuning of the Portuguese guitar is as follows (from high pitch to low pitch; a means 880 Hz, a' means 440 Hz, a=220, A=110 etc.): When starting from a six-string guitar, we ignore the double strings, and use 2 e' strings, 1 b strings, 2 g strings (or a g and d instead), and 1 A string.