B♭ In Sen
Japanese 5-note urban shamisen scale — 1 ♭2 4 5 ♭7. Modal-jazz workhorse beyond Japan.
Playback sounds a perfect 5th below the written notation — the instrument's concert (sounding) pitch.
Audio source: FluidR3_GM SoundFont (public domain)
What notes are in the B♭ In Sen scale?
The B♭ In Sen scale uses the notes B♭, C♭, E♭, F, A♭ (one octave; the pattern repeats at higher registers).
What's the In Sen scale formula?
The In Sen scale follows the interval pattern H 4 W W+H W, where W = whole step (2 semitones) and H = half step (1 semitone). Apply that pattern starting on B♭ to get the B♭ In Sen scale.
What chords work over B♭ In Sen?
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 B♭ In Sen 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 In Sen scale?
Japanese 5-note urban shamisen scale — 1 ♭2 4 5 ♭7. Modal-jazz workhorse beyond Japan.