Rhythm guitar: strumming, chord changes and timing

Good rhythm guitar comes down to two habits: a strumming arm that keeps moving, and chord changes that land on the beat. Most guitarists who sound sloppy know plenty of chords and are missing one or both. This guide covers each, with patterns you can put on a metronome tonight.

Why timing comes before chord vocabulary

A guitarist who plays three open chords in time will get through a gig. One who knows fifty voicings but drags every change will get a polite chat after the first set. In a band, the rhythm guitar fills the space between the kick, snare and bass, so when your time wobbles everyone hears it.

Groove: Steady strumming is what makes a room nod along.
The band: You fill the gaps between kick, snare and bass.
Feel: You can only push or lay back once you know where the beat is.
Getting asked back: Bandleaders forgive a wrong chord sooner than a dragged one.

Keep the strumming arm moving

Your arm goes down on every beat and up on every "and", whether or not the pick touches the strings. When you skip a strum, the arm still travels and the pick clears the strings. Every pattern below is this same motion with some strokes left out, so get it steady first.

4/4, eighth notes. The arm never changes:

Count: 1 + 2 + 3 + 4 +
Strum: D U D U D U D U

Set a metronome to 70 BPM and strum muted strings in straight eighths for two minutes without stopping. If your downstrokes don't land exactly on the click, the patterns won't either.

Five strumming patterns to learn first

Work through these in order at 70 BPM. Say the count out loud. When you can play one for a full minute without the arm stalling, move on, or add 5 BPM.

Quarter-note downstrokes. Straight rock, early punk. D D D D on 1 2 3 4.
Straight eighths. The full pendulum, every stroke played. D U D U D U D U on 1 + 2 + 3 + 4 +.
Pop/rock pattern. Miss the downstroke on 3; the arm still moves. D D U U D U on 1 2 + + 4 +.
Folk/country. Steady first half, busier second half. D D D U D U on 1 2 3 + 4 +.
Reggae skank. Short chop on 2 and 4, choked straight away. - X - X on 1 2 3 4.

Changing chords without losing the beat

Keep strumming through the change

If the new chord isn't ready on beat 1, strum on anyway. A slightly messy chord on time sounds far better than a clean one that arrives late. Your fretting hand has to fit its move inside the beat.

Leave early: Lift off the old chord on the last upstroke (the "and" of 4) and let that strum hit open strings. Nobody notices, and you get an eighth note to move.
Find shared fingers: C to Am: your index and middle fingers stay where they are. Only the ring finger moves, from the A string to the G string.
One-minute changes: Pick two chords and switch between them for a minute without strumming. Count the changes, write the number down, and try to beat it tomorrow.
Change on the click: With the metronome at 60 BPM, play one strum per chord on beat 1 of each bar. Then two bars each, then one. Only speed up once every change lands on the click.

Palm muting and percussive strumming

Rest the edge of your picking hand on the strings right by the bridge. Too far forward and the notes die completely; too far back and they ring. A palm-muted chug sits under the kick drum and leaves room for the vocal, which is why so much rock rhythm playing lives there. In the patterns below, M is muted, X is a fretting-hand mute (chord shape relaxed so the strings click) and O is an open, ringing strum.

Eighth-note chug: M M M M M M M M. All downstrokes on a power chord. Start at 90 BPM.
Gallop: M MM M MM. One eighth then two sixteenths per beat: D, D U.
Funk backbeat: XXXX OXXX XXXX OXXX. Sixteenth scratches, one group per beat, with the open chord on 2 and 4.

Syncopation and playing off the beat

Syncopation means putting the strong sounds on the weak parts of the beat: the "and" between beats, or the "e" and "a" in sixteenths. Most guitarists find it hard because they drift back to the beat without noticing. Build it in three steps with the metronome at 70 BPM.

A three-step drill

Step 1: clap the offbeats. Count "1 and 2 and 3 and 4 and" out loud and clap only on each "and". The click sits between your claps.
Step 2: strum the offbeats. Keep the arm moving and play only the upstrokes. Each downstroke misses the strings, so the click lands on silence.
Step 3: mix the two. Play 1, skip 2, play the "and" of 2, play 3, skip 4, play the "and" of 4. Loop it until the skipped beats feel deliberate.

Playing with a drummer and bassist

On a gig, the drummer is your metronome. Listen to the kit in this order.

Kick and snare: Line your accents up with them. Muted chugs often sit with the kick, open chords with the snare on 2 and 4.
Hi-hat or ride: This tells you the subdivision. If the hats play eighths, sixteenth-note strumming will clutter the song.
Bass: Leave gaps where the bass moves. If you both play busy lines in the same register, neither part comes through.

How the feel changes by style

Rock: Sit with the snare. If you're unsure what to play, hit the chord on 2 and 4 and let it ring.
Blues: Shuffle feel: split each beat into a triplet and leave out the middle note, so you get long-short, long-short.
Funk: Keep the arm in constant sixteenths and mute most of them. The few open strums are the hook.
Jazz: Start with four-to-the-bar comping: short, even quarter notes on small chord shapes, in the style of Freddie Green.
Country: Boom-chick: a bass note on 1 and 3, a strum on 2 and 4. Alternate the bass note between the root and the fifth.
Reggae: Chop on 2 and 4 and stop the chord dead. The silence on 1 and 3 is part of the groove.

A 15-minute daily routine

Three minutes of muted straight eighths at 70 BPM, counting out loud.
Five minutes on one strumming pattern from the list above.
Five minutes of one-strum-per-bar chord changes between two chords that give you trouble.
Two minutes playing along with a record. Record yourself on your phone and listen back once a week; you will hear rushing that you can't hear while playing.