The most common Mandoline has four courses of doubled metal strings tuned in unison. A total of 8 strings.
To make it easy for beginners we’ve included all of them – even though they are tuned in four couples – so you just have to follow along from the top string till the bottom one.
Mandoline Tuning
(Start from your top string)
G3
G3
D4
D4
A4
A4
E5
E5