A Whole Tone on Guitarrón

A Whole Tone runs 6 notes to the octave. Below it is mapped onto this instrument's A–D–G–C–E–A fingerboard with every A marked, because what a player needs mid-number is not the pattern but where the root is when the harmony moves under it.

Weightless and dreamlike — six equal whole steps with no leading tone, so nothing pulls anywhere. Blurry, floating, and faintly unsettling, like a dream sequence.

Heard in: Impressionist piano (Debussy's "Voiles"), Thelonious Monk's runs, dream-sequence film cues, and the augmented and 7#5 chords it fits in jazz.

The bass takes almost no melodic line, and that is precisely why these matter: the notes between one root and the next come out of a scale, and an approach that lands wrong is the loudest wrong note in the ensemble.

Take it slowly against the playback until the geometry stops being geometry, then put it under a number in A and let the written line pick its own notes out of it.