Squeezebox Studio
Scale

B minor on a G/C melodeon

B minor uses B, C♯, D, E, F♯, G and A. On a G/C there is one complete octave, from B3 to B4.

It has the same notes as D major, so the buttons are the same; what changes is the note the tune comes home to.

From B3 to B4

Push, above the linePull, below the line

Every note of this octave is on the G row, so you can play it without leaving the row. That takes four changes of bellows going up.

Crossing the rows cuts that to three changes of bellows, at the cost of one move between rows:

C rowinsideB♭4G♯41'G3B32'C4D43'E4F44'G4A45'C5B46'E5D57'G5F58'C6A59'E6B510'G rowoutsideC♯42E♭41D3F♯32G3A33B31C44D43E445G46F♯456B48A477D5C58G5E59B5F♯510D6A511
The first way, marked on the box: numbers give the order, blue halves are push and orange are pull.
Every button for each note of this octave
NoteButtons
B34 push, 2′ pull
C♯41 push (accidental)
D45 push, 3′ pull
E45 pull, 4′ push
F♯46 pull
G46 push, 5′ push
A47 pull, 5′ pull
B47 push, 6′ pull

Above and below

From B2 the scale is incomplete: this box has no B2, C♯3 or E3. Tunes that go that far down will need a different note there, or a different key.

From B4 the scale is incomplete: this box has no C♯5. Tunes that go that far up will need a different note there, or a different key.

Tab is only the start

A scale shows where the notes are, but a tune rarely runs straight up the octave. Whether you play a note on the push or the pull depends on the notes either side of it, the rhythm, and whether you play along the rows or across them. Along or across the rows explains the difference.

Same notes, different home: A Mixolydian.

B minor on other boxes: D/G melodeon, B/C button accordion.

Other keys on a G/C: G major, C major, F major, E minor, A minor, D minor, A Dorian, D Dorian, G Dorian, D Mixolydian, A Mixolydian, G Mixolydian, C Mixolydian. Or see every key compared and the G/C button chart.