Chord & FretSamba · Guitar
Samba (thumb bass + finger block, 1 bar)
Sound summary
For the guitar, Samba uses a bass-and-chord figure, in 2/4 straight (even subdivisions): the bass (B) comes from the thumb and the chord (A) follows. To the ear: B A — A B — A —.
How to count it
In 2/4, each bar has 2 beats, counted in sixteenth-notes (four per beat). Count out loud: 1 e & a, 2 e & a. Tap your foot on the strong beat and read the grid above: each cell is one subdivision.
The rhythm grid
B = bass (thumb) · A = chord block (i-m-a together, no sweep) · — = rest
The thumb bass and the i-m-a block follow the two-voice violão notation (Silva & Madeira 2021).
How to play it
Right hand
Bass and chord take turns: the bass (B) on the thumb first, then the chord (A) answering — always in that order, never colliding. It is a pinch: the thumb stays on the bass strings and i-m-a pull the three treble strings together — never sweep across all the strings. On the rests the hand stays put: the fingers hover over the strings, ready for the next block.
Left hand
The fretting hand holds the chord firmly through the whole pattern — it owns the harmony while the right hand owns the rhythm. Change chords at the last instant of the bar, the hand already moving toward the next shape.
Example in C
Over a C chord, the bass (B) is the note G on the low string — the chord’s lowest note. Play that bass on the pulse and let the whole C answer right after. Hear the example and follow the diagram.
Common mistakes
- Bass and chord landing together. The bass (B) comes first; the chord (A) answers after. If they collide the groove disappears — separate the two hands in time.
- Running the subdivisions. The faster the pattern, the easier to push ahead — lock the tempo on the metronome before speeding up.
- Freezing the arm on a rest. It should keep going in the air, off the strings, and land on the next hit — the continuous motion is what holds the time.
Guided practice
- Bass alone. Play only the B hits (thumb), very slowly, feeling each one land in time.
- Chord alone. Now play only the A hits, answering the bass, without the bass note.
- Add the two voices. Bass then chord, always in that order, slow, until it plays itself.
- Take it up on the metronome. Start slow, keep the pattern clean, and add a few BPM at a time.
You already get the logic of the groove. Putting it in time is where it enters your fingers: hear the pattern, follow the count and practice with a metronome — slow first — until the bass and the chord sit apart in time. That’s what Chord & Fret does, with guided audio and an adjustable tempo.
Open the trainer →Variations & related patterns
With the strum steady, take it to actual Samba progressions: rhythm, chord changes and voice-leading in one exercise. That’s the Progressions by Rhythm feature in Chord & Fret.
See the genre’s progressions →Understanding the groove is the first step; the full practice — repetition, metronome, audio, progressions and review — happens in Chord & Fret. There this pattern stays saved in your study, to revisit later, play offline and track your progress.
Start training →