fuaranScale Mastery
SCALE · ON FRENCH HORN

C𝄫 Yo

Japanese 5-note country-folk shamisen scale — 1 2 4 5 6. The bright counterpart to In Sen.

MEIMIDIHumdrum
Choose a root
Meter:Octave per barCrotchets in 4/4Quavers in 4/4Triplets in 4/4
Engraved by Verovio 6.2.0-43f8060 title C𝄫 Yo
Engraved by Verovio 6.2.0-43f8060 2 title C𝄫 Yo
Verovio
Tempo120 bpm

Playback sounds a perfect 5th below the written notation — the instrument's concert (sounding) pitch.

Audio source: FluidR3_GM SoundFont (public domain)

FingeringFollows the scale as it plays — written pitch, matches the staff
C𝄫thumb trigger — B♭ sideT123partial 4right hand rests in the bell — shading pulls sharp notes down; stopping raises the F-side pitch a semitone (finger a half-step low)bellopen
Harmonic seriesTube of the tonic fingering — C𝄫 sounds partial 4
partial 1 — A♯1 (+0¢)1partial 2 — A♯2 (+0¢)2partial 3 — F3 (+2¢)3partial 4 — A♯3 (+0¢)4partial 5 — D4 (-14¢)5partial 6 — F4 (+2¢)6partial 7 — G♯4 (-31¢)7-31¢partial 8 — A♯4 (+0¢)8partial 9 — C5 (+4¢)9partial 10 — D5 (-14¢)10partial 11 — E5 (-49¢)11-49¢partial 12 — F5 (+2¢)12
Related scales
Same scale, other instruments
Same scale, other tonics
Modes built on this tonic
Compare with
Theory reference
Questions
What notes are in the C𝄫 Yo scale?

The C𝄫 Yo scale uses the notes C𝄫, D𝄫, F𝄫, G𝄫, A𝄫 (one octave; the pattern repeats at higher registers).

What's the Yo scale formula?

The Yo scale follows the interval pattern W W+H W W W+H, where W = whole step (2 semitones) and H = half step (1 semitone). Apply that pattern starting on C𝄫 to get the C𝄫 Yo scale.

What chords work over C𝄫 Yo?

Try chord pairings derived from the scale's third, fifth, and seventh degrees as roots — they share the most diatonic notes.

How do I finger C𝄫 Yo on French Horn?

On brass, scales train embouchure + valve / slide coordination across the partials. Slow practice with a tuner reveals intonation tendencies (e.g., the 5th partial sharp on trumpet).

When would I use the Yo scale?

Japanese 5-note country-folk shamisen scale — 1 2 4 5 6. The bright counterpart to In Sen.