Eb
D string, 1st fret
Eb: index finger on the D string, 1st fret
The fifth Bb (pearl dot with the 5): G string, 3rd fret – one string higher, two frets further. Root and fifth in turn: that’s the simplest bass line.
Fret the note and tap “Check me!”.
Eb all over the neck
E string, 11th fret · A string, 6th fret · D string, 1st fret · G string, 8th fret