Watch the "Flat Earth" Harmonics online guitar lesson by Dmitry Lisenko from Percussive Acoustic Bass (Foundry)

The bass part is quite easy. Let's see what happens with harmonics - we have to hold our fingers over 7th fret on G and D strings (don't push them, just lightly touch the strings), and tap artificial harmonics after the 12th frets, that's mean we hit the 19th fret. And the harmonics stay the same, we change only bass notes.