fuaranScale Mastery
SCALE · ON BASSOON

B𝄫 In Sen

Japanese 5-note urban shamisen scale — 1 ♭2 4 5 ♭7. Modal-jazz workhorse beyond Japan.

MEIMIDIHumdrum
Choose a root
Meter:Octave per barCrotchets in 4/4Quavers in 4/4Triplets in 4/4
Engraved by Verovio 6.2.0-43f8060 4 title B𝄫 In Sen
Engraved by Verovio 6.2.0-43f8060 2 3 4 5 title B𝄫 In Sen
Verovio
Tempo120 bpm

Audio source: tonejs-instruments by Nick Brosowsky (MIT)

FingeringFollows the scale as it plays — written pitch, matches the staff
B𝄫DDCCAAC♯C♯wwB♭B♭BBCCDDE♭E♭E♭E♭C♯C♯B♭B♭EEF♯F♯A♭A♭FFA♭A♭
Related scales
Same scale, other instruments
Same scale, other tonics
Modes built on this tonic
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Theory reference
Questions
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 Bassoon?

On double reeds, scales train reed control + register changes + the half-hole / full-hole register transition. Slow practice exposes pitch instability the player can correct with embouchure.

When would I use the In Sen scale?

Japanese 5-note urban shamisen scale — 1 ♭2 4 5 ♭7. Modal-jazz workhorse beyond Japan.