Watch the True Grit online guitar lesson by Rich Maloof from 50 Acoustic Guitar Licks You MUST Know

Make the most of the acoustic's different timbres, which get trebly and thin near the bridge and bassy and thick near the neck joint. Combined with some nice, dissonant chords (similar to what you hear on Pink Floyd's "Breathe" and ELP's "Lucky Man"), a downwards rake near the bridge sets a dark mood -- and pulls in a listener only to leave them hanging for a resolution. Changes like those heard here load a progression with tension even at the slowest tempo.