A mariachi is not a line-up, it is a division of labour into three sections, and knowing which section an instrument belongs to explains more about what it plays than knowing which instrument it is. The armonía states the harmony as rhythm. One bass carries the whole low end. The melody sings, bows and blows the line on top. Everything else — the grips, the scales, the keys — follows from that.
THE ARMONÍA IS THE PART OUTSIDERS GET WRONG. It looks like two or three people strumming chords. It is two or three people executing ONE declared pattern at ONE instant, chosen by whoever called the form. Nobody in it is expressing anything; the section is a rhythm instrument that happens to be made of chords, and its virtue is that its hands agree to the sixteenth. The mánico engine is that pattern set, declared slot by slot.
Four of the seven voices below have reference pages here, and three do not. That split is not editorial. This site BORROWS its instruments from the sisters that own them — the vihuela, the guitarrón and the guitar are Guitar Warrior’s families, the violin is Fiddle Warrior’s — and the network’s rule is that a borrowed instrument must already have a deep home somewhere. The trumpet, the harp and the voice have none. Rather than invent one, they get honest prose and no door at all.
Three sections, and who stands in each
Armonía
The drumless drum kit. Two or three strummed instruments hitting one declared pattern together, so the chord and the pulse arrive as a single event.
The section states the harmony as rhythm — closed chords struck in a named mánico, every member of the section playing the identical pattern at the identical instant.
- Vihuela — the top of the armonía — five re-entrant strings whose open third is the highest open pitch on the instrument, so every strum lands as one tight treble block instead of a spread stack. Chords · Scales · Keys, diatonically · Fretboard explorer
- Guitar — the bottom of the armonía — the same mánico the vihuela is playing, an octave lower and with more sustain, which is what stops the section sounding thin under a full melody. Chords · Scales · Keys, diatonically · Fretboard explorer
Bass
One instrument, no deputies. If it breathes, everything above it breathes with it.
The section carries the entire low end of an ensemble with no drums and no amplifier, plucked in octave double-stops so one instrument is loud enough to sit under a violin section and two trumpets.
- Guitarrón — the whole bass section by itself — six heavy strings on a fretless neck, roots and fifths on the strong beats and an approach into the cadence, nearly every note doubled at the octave. Chords · Scales · Keys, diatonically · Fingerboard explorer
Melody
Written parts, not improvised turns. A violin section plays one line together; a trumpet pair harmonises it a third apart.
The section carries the line on top and the answers between vocal phrases — the violins bowing in section, the trumpets stacked in thirds, and the sung line they are all arranged around.
- Violin — the melody section's written line — several players bowing one part together, so intonation is a group problem before it is anybody's solo. Chords · Scales · Keys, diatonically · Fingerboard explorer
- Trumpet — the declamatory half of the melody — two horns stacked a third apart, taking the opening call, the answer between sung lines, and the held note that ends the number. Prose only: no reference pages here, and no door, because there is nowhere honest to point one.
- Harp — the ensemble's older low voice — it carried the bottom end until a louder, more portable instrument displaced it, and where it survives it plays running figures the strummed section leaves room for. Prose only: no reference pages here, and no door, because there is nowhere honest to point one.
- Voice — the reason the arrangement exists — solo, in duet a third apart, or the whole group answering, with every section written to leave the words audible. Prose only: no reference pages here, and no door, because there is nowhere honest to point one.
The trumpet, the harp and the voice
Three voices this site describes and cannot chart. Each one is real, each one is named on these pages wherever it belongs, and none of them gets a chord diagram or a cross-site link — because a link needs somewhere to go, and none of the three has a home in the Warrior Network to send a reader to.
Trumpet
The declamatory half of the melody — two horns stacked a third apart, taking the opening call, the answer between sung lines, and the held note that ends the number.
Harp
The ensemble's older low voice — it carried the bottom end until a louder, more portable instrument displaced it, and where it survives it plays running figures the strummed section leaves room for.
Voice
The reason the arrangement exists — solo, in duet a third apart, or the whole group answering, with every section written to leave the words audible.
If any of the three ever gains a site of its own, this page gains a door and a set of reference pages in the same commit. Until then, saying so plainly is the only honest option: scripts/validate-ensemble.js pins the prose-only set in both directions, so a voice cannot quietly acquire a page and an instrument cannot quietly lose one.
