Rock Guitar: Riffs and Power Chords
Rock guitar is built on riffs. A riff is a short, repeating musical phrase that drives a song forward — the part you hum walking down the street, the part that makes you reach for your guitar. This handout explores the techniques and patterns that define rock guitar, with arrangements from three of the genre’s most important bands: Nirvana, Black Sabbath, and Bob Dylan (who electrified folk into rock). Every arrangement here uses skills from the course sessions, so you can play them right now.
Genre Introduction
Section titled “Genre Introduction”Rock guitar emerged in the 1950s when blues musicians plugged their guitars into amplifiers and turned up the volume. Chuck Berry, Muddy Waters, and then the British Invasion bands — The Beatles, The Rolling Stones, The Who — built a genre on guitar riffs, driving rhythms, and raw energy. By the late 1960s and 1970s, bands like Led Zeppelin, Deep Purple, and Black Sabbath had pushed rock into heavier territory with louder amplifiers, distorted tones, and power chords.
What makes rock guitar distinctive is its emphasis on riffs over complex chord progressions. A rock song lives or dies by its signature riff — think of the opening of “Smoke on the Water” or “Iron Man.” You do not need to know twenty chords to play rock. You need to know power chords, palm muting, and how to lock into a groove with attitude.
Your Saga SF-600C-BK is an acoustic guitar, not an electric with distortion. The arrangements in this handout sound different from the recordings — cleaner, more transparent. That is not a weakness. Playing these riffs on acoustic trains your ear to hear the raw harmonic structure underneath the distortion. When you eventually plug into an electric guitar and an amplifier, your technique will be solid because you learned it clean.
Key Guitar Techniques
Section titled “Key Guitar Techniques”Power Chords
Section titled “Power Chords”Power chords are the backbone of rock guitar. A power chord uses only two or three notes — the root and the fifth — making it neither major nor minor. This neutral quality lets it fit anywhere with a driving, aggressive sound.
Two-string E5 power chord:
String 6 (E): Open. String 5 (A): Fret 2, Finger 1 (index). Strum only strings 6 and 5.
Two-string A5 power chord:
String 5 (A): Open. String 4 (D): Fret 2, Finger 1 (index). Strum only strings 5 and 4.
Power chords are introduced in Session 9. Moveable power chords (played up the neck) appear in Session 20.
Palm Muting
Section titled “Palm Muting”Palm muting gives power chords their signature tight, chugging sound. Rest the fleshy edge of your strumming hand on the strings at the bridge saddle — lightly enough that the strings still vibrate with a “chunk” sound, not so heavily that they go silent.
This technique is introduced in Session 9 and used throughout Phase 3 and 4.
Riff-Based Playing
Section titled “Riff-Based Playing”Many rock songs are built on single-note riffs rather than strummed chords. A riff is a melodic pattern played on one or two strings, often with palm muting. Riff-based playing uses your alternate picking skills (Session 4) combined with fretting accuracy.
Essential Patterns
Section titled “Essential Patterns”Pattern 1 — The Power Chord Chug
Section titled “Pattern 1 — The Power Chord Chug”This is the most basic rock rhythm pattern. Palm-muted power chords in eighth notes.
E5 power chord, palm muted throughout:
e|-------------------------------|
B|-------------------------------|
G|-------------------------------|
D|-------------------------------|
A|---2---2---2---2---2---2---2---2|
E|---0---0---0---0---0---0---0---0|
PM PM PM PM PM PM PM PM
1 & 2 & 3 & 4 &
Tempo: 80 BPM What makes it sound like rock: The tight, rhythmic chugging creates forward momentum — like the engine of a song. Nearly every rock and punk song uses this pattern in some form.
Skills needed: E5 power chord (Session 9), palm muting (Session 9), alternate picking (Session 4)
Pattern 2 — Open and Muted Contrast
Section titled “Pattern 2 — Open and Muted Contrast”Alternating between open (ringing) power chords and palm-muted hits creates dynamic punch.
E5 — alternating open (O) and palm muted (PM):
e|-------------------------------|
B|-------------------------------|
G|-------------------------------|
D|-------------------------------|
A|---2---2---2---2---2---2---2---2|
E|---0---0---0---0---0---0---0---0|
O PM PM O PM PM O PM
1 & 2 & 3 & 4 &
Strum: D D U D D U D U
Tempo: 75 BPM What makes it sound like rock: The contrast between the ringing open strum and the tight muted strums gives the rhythm a breathing, pulsing quality. This is the core of “Smells Like Teen Spirit” verse dynamics.
Skills needed: E5 (Session 9), palm muting (Session 9), D/U strumming (Session 5)
Pattern 3 — The Two-Chord Rock Riff
Section titled “Pattern 3 — The Two-Chord Rock Riff”The Em–G alternation is one of the most common patterns in rock music, from Nirvana to Green Day.
Tempo: 80 BPM What makes it sound like rock: The D D U U D U strumming pattern (learned in Session 5) has a natural swing and drive. The Em-to-G movement — dark minor to bright major — is the sound of alternative rock.
Skills needed: Em (Session 2), G (Session 10), D D U U D U pattern (Session 5)
Beginner Arrangements
Section titled “Beginner Arrangements”Arrangement 1 — “Come As You Are” by Nirvana
Section titled “Arrangement 1 — “Come As You Are” by Nirvana”Original artist: Nirvana (Nevermind, 1991) Arrangement type: Single-note riff (TAB) Skills needed: Alternate picking (Session 4), fretting on string 4 at frets 0 and 2
This riff is taught in simplified form in Session 4. Here is the simplified TAB for reference and extended practice. The original riff uses additional chromatic notes — this version captures the ascending-descending contour while keeping the fretting simple.
Tempo: Start at 60 BPM, target 100 BPM
"Come As You Are" — Main Riffe|-------------------------------|-------------------------------| B|-------------------------------|-------------------------------| G|-------------------------------|-------------------------------| D|---0--0--0--0--2--2--2--2------|---0--0--0--0--2--2--2--2------| A|-------------------------------|-------------------------------| E|-------------------------------|-------------------------------|Picking: D U D U D U D U D U D U D U D UCount: 1 & 2 & 3 & 4 & 1 & 2 & 3 & 4 &e|-------------------------------|-------------------------------| B|-------------------------------|-------------------------------| G|-------------------------------|-------------------------------| D|---2--2--2--2--0--0--0--0------|---2--2--2--2--0--0--0--0------| A|-------------------------------|-------------------------------| E|-------------------------------|-------------------------------|Picking: D U D U D U D U D U D U D U D UCount: 1 & 2 & 3 & 4 & 1 & 2 & 3 & 4 &
The riff cycles: two measures ascending (0 to 2), two measures descending (2 to 0), repeat.
Performance tips:
- Keep alternate picking even — downstrokes and upstrokes at equal volume
- The original uses a chorus effect pedal on electric guitar. Your acoustic version will sound drier but the melody is identical
- Let each note ring into the next — do not cut notes short
- Once comfortable at 100 BPM, the original tempo is approximately 120 BPM
Arrangement 2 — “About a Girl” by Nirvana
Section titled “Arrangement 2 — “About a Girl” by Nirvana”Original artist: Nirvana (Bleach, 1989) Arrangement type: Chord strumming Skills needed: Em (Session 2), G (Session 10), D D U U D U strumming (Session 5)
This song is taught in Session 10. Here is the full verse and chorus arrangement.
Tempo: Start at 70 BPM, target 110 BPM
Verse (repeat 4 times for a full verse):
Lyrics with chords (Verse 1):
Em G
I need an easy friend
Em G
I do, with an ear to lend
Em G
I do think you fit this shoe
Em G
I do, but you have a clue
Chorus:
Performance tips:
- The verse is dark and restrained (Em–G). The chorus brightens with C–G.
- Strum aggressively — this is grunge, not a ballad
- The original recording is much faster. Work up gradually. Even at 80 BPM it sounds great.
- The C chord is introduced in Session 11. If you are playing this before Session 11, use Em for the chorus as a placeholder.
Arrangement 3 — “Knockin’ on Heaven’s Door” by Bob Dylan
Section titled “Arrangement 3 — “Knockin’ on Heaven’s Door” by Bob Dylan”Original artist: Bob Dylan (Pat Garrett and Billy the Kid, 1973) Arrangement type: Chord strumming with lyrics Skills needed: G (Session 10), D (Session 7), Am (Session 3), D/U strumming (Session 5)
This song is taught in Session 10. It uses three chords in a repeating pattern — one of the most covered songs in rock history.
Tempo: 70 BPM
Verse and Chorus (same progression):
Lyrics with chords (Verse 1):
G D Mama, take this badge off of me Am Am I can't use it anymore G D It's gettin' dark, too dark to see Am Am I feel I'm knockin' on heaven's door
Chorus:
G D Knock, knock, knockin' on heaven's door Am Am Knock, knock, knockin' on heaven's door
Performance tips:
- This song has a gentle, reflective feel. Strum lightly with a smooth D/U pattern.
- The Am–Am (two measures of the same chord) gives you a rest between transitions.
- The G → D transition is the hardest (all fingers move). Practice it in isolation.
- Many rock bands have covered this song (Guns N’ Roses made a famous version). The acoustic original is beautiful in its simplicity.
Listening List
Section titled “Listening List”Five essential rock tracks to listen to. Pay attention to the guitar — how it drives the song, when it uses riffs vs chords, when it is loud vs quiet.
- “Smoke on the Water” — Deep Purple — The most famous guitar riff ever. Listen for the power chord shapes and the space between each hit.
- “Back in Black” — AC/DC — Open chord riffing at its finest. The intro uses E and A shapes you already know. Notice how the strumming pattern creates groove.
- “Wish You Were Here” — Pink Floyd — Acoustic guitar intro that shows rock does not always mean loud. Beautiful fingerpicked and strummed acoustic arrangement.
- “Heart of Gold” — Neil Young — Acoustic rock with Em, C, D, and G. Almost identical to chords you know. Listen for the harmonica interplay with the guitar strumming.
- “Everlong” — Foo Fighters — Modern rock with dynamic contrast between quiet verses and loud choruses. Listen for the shift in strumming intensity.
Practice Tips
Section titled “Practice Tips”-
Start slow, play clean. Rock sounds exciting at high tempos, but messy playing sounds bad at any tempo. Learn every riff at 50-60% of the target speed first.
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Palm muting is your secret weapon. Practice palm muting for 5 minutes every session. The difference between a beginner rock guitarist and an intermediate one is often just palm muting control.
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Use a metronome. Rock is built on groove, and groove requires steady time. Set a metronome and lock in. A riff played in perfect time at 60 BPM sounds more rock than the same riff played sloppily at 120 BPM.
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Listen to the originals. Play the recording and play along (at your tempo, not theirs). Hearing the original while playing your simplified version trains your ear to hear how your arrangement fits the real song.
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Acoustic is a starting point, not a limitation. These riffs are born on electric guitar with distortion. On your Saga SF-600C-BK, they sound cleaner and more transparent. This is excellent for learning — you hear every note clearly. When you move to electric guitar, these riffs will sound massive because your technique is already solid.
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Play with attitude. Rock is not polite. Hit the downstrokes firmly. Accent beat 1. Let power chords ring with purpose. Your body language matters too — sit up, lean into the guitar, and play like you mean it.