4 string Banjo : Banjolin/Bass/Cello/Tenor/Plectrum. 5 string Banjo : Open G/C(Classic)/Double C/Saw mill/Open D/Willie Moor/Doc Bug's D/Cumberland Gap/G minor/Open C/Guitar tuning modes. 6 string Banjo : Standard/Guitar. With auto noise filtering.First step is choose the frequency at top of screen, then choose the tuning at the middle of the screen. When you play instrument, the pitch will be shown on the panel for the individual string by indicating signal high or low. [Tuner] - A4 Frequen