What this site is for
Keys Warrior covers the keyboard family: piano, electric piano, organ, and the synths whose voice count decides how much of a chord you actually get to hear. From one end of that family to the other the layout never changes — twelve keys to the octave, nothing to tune, no string to number, no position to choose. A chord here is a set of keys, and a scale is a walk along one row of them.
That sameness is why this site can be brief about where your hands go and long about which notes a four-voice synth throws away from a ninth chord. It is also why a question about a fretted instrument gets a poor answer here. Nothing on a keyboard transposes by sliding a shape sideways; every key has its own arrangement of black notes, so this site has no honest way to write about the instruments where sliding a shape is the entire trick.
Where to go when it is not a keyboard
String WarriorThe one place a single chord is drawn on twenty-odd tunings side by side; a keyboard only ever has one layout to draw, so that comparison cannot exist here.
Theory WarriorSpelling and function with no instrument attached at all, which is the closest any site gets to the way a keyboard already makes you think.
Ukulele WarriorFour strings with one of them tuned above its neighbours, so a chord comes out in an order no keyboard player would choose by accident.
Bass WarriorA whole instrument covering the ground your left hand covers in an octave, played by somebody who has to make every one of those notes count.
Mandolin WarriorTuned in fifths, where one shape covers all twelve keys because you can slide it. Nothing here slides: every key needs its own set of black notes.
Guitar WarriorThe six-string vocabulary in full — the shapes, the capo, the retunings — none of which has a keyboard equivalent, because a keyboard never needed one.
Banjo WarriorFive strings, a short drone that keeps sounding whatever you fret, and a right hand that picks a repeating pattern instead of striking a chord.
Fiddle WarriorNo keys and no frets: the pitch is a decision your finger makes every time, which is the single thing a keyboard has never once asked of you.
Ear WarriorA keyboard makes every interval visible as a distance you can count, which is precisely the crutch that site removes: nothing to look at, a key chosen by the seed, and a record of the pairs you keep confusing.
Bluegrass WarriorThe band a keyboard is usually not in, and a straight answer about which seats a jam actually expects to see turn up.
Music Warrior NetworkThe other hub is not the whole network. That site is the map of it: one card per sister, the subject each one owns, and whether it is open yet — the page to read before deciding a keyboard question was really a theory question.
Nashville WarriorThe one instrument a page of numbers refuses to help: there is no shape to slide, so the reader takes the whole page as a destination and does the transposition in their head. That site is where this reader's problem is the subject rather than a footnote.
Mariachi WarriorAn ensemble with no keyboard in it, and no drummer either — which is the interesting part. Everything a comping instrument would do is split between a block of chords struck in unison and a bass doubled at the octave.
Jazz WarriorThe one seat there that can state a chord and its substitute at the same time is this instrument's. Worth seeing what a tradition does with that when it has ten fingers, somebody else on the root, and no obligation to play it.
Country WarriorThe piano is one of two chairs country adds rather than assumes, and it arrives only when there is room left over. That site writes out the part it actually plays: pads, intro hooks, and the fills a fuller arrangement has no space for.
Tres WarriorThe piano montuno and the tres figure are the same idea on two instruments, but a keyboard has ten fingers and eighty-eight keys to spend where the tres has three courses and must choose. The choosing is the whole craft.
Sitar WarriorTwelve fixed pitches per octave is the one thing a keyboard cannot negotiate, and the sitar's whole expressive vocabulary lives in the space between them — the sharpest argument the network offers about what a piano quietly rounds off.
Oud WarriorA keyboard's pitches were settled by whoever tuned it, once, for everybody; on a bare oud fingerboard every one of them is a decision the player's hand makes each time — the sharpest available look at what a fixed keybed quietly took away.
Cuatro WarriorA keyboard voicing is a decision about which notes to include. The Venezuelan cuatro's is a decision about which four are physically available and in what order they will sound, with one of them deliberately not where you expect.
Charango WarriorTen fingers choose which notes sound and where; five doubled courses choose for you, and one of them sits an octave above where you would put it. Worth seeing a voicing decided by a tuning rather than by a hand.
Cavaquinho WarriorA player asking what makes samba sound like samba will not find it in the chords, which are ordinary. It is in the right hand's subdivision, and that site is the one place in the network where the stroke pattern is the subject rather than the accompaniment.
Gear WarriorA chord is the same shape on a slab controller and a weighted stage piano; the action, the price and the company behind the badge are not, and none of those are settled on a chord chart.
Blues WarriorA blues piano part keeps putting the lowered third against a chord that already holds the major one. That site says, bar by bar through four blues forms, which notes of the blues scale clash like that and which sit inside the chord.
Flamenco WarriorThe harmony of a soleá is easy to find on a keyboard; its count is not. That site lays out four palos as twelve-count cycles, marks where the accents fall and gives each one's cadence in any key.
Progression WarriorA keyboard shows every chord in a song as a shape you can see, but not which key the song has settled in. Type the line into that site and it names the key, the mode and a Roman numeral under every chord.
Pedal Steel WarriorA keyboard plays any voicing the hand can span. A steel lays one straight bar across ten strings, and that site shows which chords a bar holds at each fret and what the pedals change underneath it.
Scales WarriorOn a keyboard it takes one finger to shift a single note of a mode by a semitone. That site lists every time that shift lands on another named mode, across 49 modes in seven families of seven-note scales.
Music Warrior AIThe endpoint behind that site answers for the fretted and bowed instruments, not the keyboard. Where it meets this site is the theory: inside an AI assistant, a scale's notes degree-spelled in any key and a whole progression transposed in one call.
How the network divides the work
One family, one home. Anything you play from a keyboard lives here — the organ and the synths included, even though a synth is an electronic instrument long before it is a keyboard one, because the interface is what settles the question. In return this site claims nothing with strings on it, and none of the string sites keep a thin keyboard section on the side.
The list above is every sister that is open today. Others are still being built, and each will join the list the day it opens — on the same terms as the rest, one subject and one home.