Agent Pitch Map

Piano, guitar, theory, sound, and tab map for humans and AI agents

SelectedC4MIDI 60261.63 Hz
Local project
Selected noteC4MIDI 60261.63 Hz
MapperExact pitch

5 exact guitar places for C4

Same note nameC across octaves

6 piano keys, 12 guitar frets

Current sourceS2 F1

Guitar fret selected

FunctionR

root of C

Yellow = exact selected pitchAmber outline = same note nameGreen = C major scaleDark = outside visible layer

Piano

61-key C2-C7 range C2-C7

6-string guitar

5 exact guitar places for C4; standard tuning, frets 0-24
S6 F20 C4S5 F15 C4S4 F10 C4S3 F5 C4S2 F1 C4S6 F8 C3S5 F3 C3S4 F22 C5S3 F17 C5S2 F13 C5S1 F8 C5S1 F20 C6

Yellow is the exact selected pitch. Amber outlines are the same note name in other octaves, with octave labels shown on those matches. Green is the separate C major scale: C D E F G A B. Dark cells are notes outside that scale.

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Playable chord shapes

C major voicings are generated from the same standard-tuning MIDI map and labeled by interval.

x x 2 0 1 03 5 R
S4 F2 E3 3S3 F0 G3 5S2 F1 C4 RS1 F0 E4 3
x x 2 0 1 33 5 R
S4 F2 E3 3S3 F0 G3 5S2 F1 C4 RS1 F3 G4 5
x x 2 5 1 33 R 5
S4 F2 E3 3S3 F5 C4 RS2 F1 C4 RS1 F3 G4 5
x x 5 0 1 05 R 3
S4 F5 G3 5S3 F0 G3 5S2 F1 C4 RS1 F0 E4 3
x x 5 5 1 05 R 3
S4 F5 G3 5S3 F5 C4 RS2 F1 C4 RS1 F0 E4 3
x x 2 5 5 33 R 5
S4 F2 E3 3S3 F5 C4 RS2 F5 E4 3S1 F3 G4 5

Tab

4/4 at 96 bpm
e|
B|
G|
D|
A|
E|
e|----------------|
B|------------1---|
G|--------0-------|
D|----2-----------|
A|3---------------|
E|----------------|

Project state

The app stores structured pitch and tab events, not raw diagrams. JSON, URLs, playback, and ASCII tab export are projections of this MIDI-backed state.

Project JSON ready
  • Exact pitch: C4 only.
  • Function: R (root) against C.
  • Pitch class: every C across octaves.
  • Tab cursor: beat 2.00 in the first measure.