Chuck Berry recorded “Johnny B. Goode” at Chess Studios in January 1958, playing a white Gibson ES-350T with brand-new PAF humbuckers — and that bark in the intro? That’s those pickups talking. The riff went on to become one of the most recognized guitar openings ever recorded, and it’s the only rock and roll track that made it onto the Voyager Golden Record in 1977. In this lesson, Marty Schwartz breaks down the full intro riff, the I–IV–V chord framework in Bb, the Mixolydian and minor pentatonic hybrid Chuck Berry used, and how to build a looper practice track so you can run the intro over a real-sounding backing.
The Key: Bb Blues and Why It Sounds Like That
The song is in Bb. That’s not an accident — 1950s R&B bands all carried horn players, and horn players live in flat keys. So Berry was writing for a band where Bb was just home. The I chord is Bb (sixth-fret E-string root), the IV chord is Eb (sixth-fret A-string root), and the V chord is F (eighth-fret A-string root).
Marty labels those as power chords — Bb5, Eb5, and F5 — the same movable shape slid to different frets.
The Eb5 (IV chord) sits right next door:
And the F5 (V chord) moves up the A string:
The Scale Mix Behind the Riff
The intro doesn’t live in one scale. Marty is clear about this: it’s a hybrid of the Bb minor pentatonic (the blues scale) and Bb Mixolydian. The note that makes the whole thing snap is the move from the minor third to the major third — a hammer-on from the sixth fret to the seventh fret on the G string. That one move is Chuck Berry’s signature. It’s the thing that makes blues guitar sound like it’s grinning.
The riff centers on the eighth-fret area of the B string, where most of the action happens.
Breaking Down the Intro Riff, Piece by Piece
Marty teaches the riff in sections rather than one overwhelming run. Here’s how it lays out.
Opening slide. The very first move is a slide up to the seventh fret on the G string with the middle finger. You can start from a half step back (sixth fret) or drag it all the way from the first fret. After that, move to the B string for a 6–8 run — that’s straight from Bb Mixolydian.
The double-stop cluster. Next comes a two-note shape on the B and high-E strings, starting at the fifth fret and sliding up a half step to the sixth. The slide goes up — Marty is specific that you don’t hear it slide back down. From there, the line runs down through Bb Mixolydian with that hammer-on (sixth to seventh on the G string) thrown in at the end.
The middle section. Marty runs 9–8–6 on the B string, rolls his index finger to the sixth fret on the G, hammers up to the seven with his middle finger, and lands on the root note — Bb — at the eighth fret on the D string. It’s a lot of fingers in motion, but the key is that index finger roll. Practice that transition on its own before stringing the whole phrase together.
The higher phrase. This part uses Bb major pentatonic or Mixolydian (the notes overlap). Marty catches the eighth-fret A and D strings for a partial chord shape — a glimpse of the barre chord — then moves back into the double-stop material.
The descending run. The riff starts on the root, goes 6th-fret high-E, then 9–8–6 on the high-E string. From there it descends: 8–6, then 9–8–6, then eighth fret on the G, and the hammer-on again from six to seven. At the very end, Marty rakes across the strings with the sixth-fret B and high-E covered — the rest stays muted. A little scrape, then right back into 9–8–6 on the B string to close it out.
The Hammer-On That Defines the Sound
Marty keeps coming back to one move: hammering from the minor third to the major third on the G string (sixth fret up to the seventh). That half-step hammer is what gives the intro its tension and release — the note wants to resolve, and when it does, it sounds like a question answered. It’s also the heart of what Chuck Berry took from jump blues and turned into rock and roll guitar language.
There’s a useful trick in bending, too. Marty’s third finger pins the eighth fret on the G string, middle finger glued right behind it for support. That supported bend — two fingers acting as one — is what makes the note sing instead of wobble. Get that physical habit locked in early.
Looper Pedal Practice — Marty’s Specific Tip
This part of the lesson is genuinely clever. The intro to “Johnny B. Goode” starts with the guitar alone before the band enters. So if you loop the I–IV–V progression and start playback on beat one, it clips the intro. Marty’s fix: start your loop recording on the IV chord (Eb), play through the full I–IV–V progression, and stop the recording just before the IV chord comes around again. Now when the loop restarts, the first thing it plays is the I chord — exactly where the band enters in the song. The guitar riff lands right at the top of the loop. It sounds like a backing band, and you can play the intro over silence just like the real recording.
Marty runs this exact setup on his Saturday live streams at 1:00 PM Pacific, so you can hear it in context there if you want to see the timing before you try it yourself.
Putting It Together
The intro to “Johnny B. Goode” is a masterclass in doing more with less. Two scales that blend, one key hammer-on, a handful of double-stop positions, and a slide at the top. Marty’s approach is to isolate each piece, get the finger mechanics right — especially that index-finger roll and the supported bend — and then string it together at a slow tempo first. The looper tip means you don’t need a band to practice it; you can build the feel from day one.
It took Berry one guitar, a Chess Studios session, and a riff borrowed from jump blues to plant a flag for rock and roll. Worth learning note for note.
