A𝄪 In Sen
Japanese 5-note urban shamisen scale — 1 ♭2 4 5 ♭7. Modal-jazz workhorse beyond Japan.
Audio source: tonejs-instruments by Nick Brosowsky (MIT)
What notes are in the A𝄪 In Sen scale?
The A𝄪 In Sen scale uses the notes A𝄪, B♯, D𝄪, E𝄪, G𝄪 (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 A𝄪 to get the A𝄪 In Sen scale.
What chords work over A𝄪 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 A𝄪 In Sen on Trombone (tenor clef)?
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.