Tap a string or swipe across them all.
A7: Index finger across the strings D to B, 2nd fret, middle finger on the E string, 3rd fret
Soprano, concert or tenor ukulele? A7 is fingered differently there ›
Guitar? A7 has the same shape on the four high strings ›
Songs with A7: Der Kuckuck und der Esel, Weißt du, wie viel Sternlein stehen