Pop in F — syncopated rhythm
The F, C, Dm, Am progression with a syncopated strumming pattern (off-beat accents), more demanding than the basic steady pattern.
Tips
Count out loud and clap the off-beats before picking the guitar back up, to really feel the displacement.
Understanding this type of exercise
C-G-Am-Em, syncopated strum
The same loop, but the accent lands on the "ands" rather than the beats. The arm keeps the exact same even swing; only the wrist's emphasis changes. Count "1 and 2 and" out loud and isolate one bar before chaining it.
Chord progression — F
Bar 1
F
I
Bar 2
C
V
Bar 3
Dm
vi
Bar 4
Am
iii