Squeezebox Studio
Scale

E minor on a B/C button accordion

E minor uses E, F♯, G, A, B, C and D. On a B/C you can play the whole scale up from E3 and E4.

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

From E3 to E4

Push, above the linePull, below the line

No single row has every note of this octave, so you have to cross between the rows. This is the way with the fewest changes of bellows: three going up, and three moves between rows.

C rowinsideE31A341'G33B352'C46D473'E4F44'G4A45'C5B46'E5D57'G5F58'C6A59'E6B510'B rowoutsideD♯3G♯31F♯32A♯32B3C♯43D♯4E484F♯4G♯45B4A♯46D♯5C♯57F♯5E58B5G♯59D♯6A♯510F♯6C♯611
The same 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
E31′ push
F♯32 push
G32′ push
A31′ pull
B33 push, 2′ pull
C43′ push
D43′ pull
E44 pull, 4′ push

From E4 to E5

Push, above the linePull, below the line

No single row has every note of this octave, so you have to cross between the rows. This is the way with the fewest changes of bellows: three going up, and three moves between rows.

C rowinsideE3A31'G3B32'C4D43'E41F44'G43A445'C56B456'E5D577'G5F58'C6A59'E6B510'B rowoutsideD♯3G♯31F♯3A♯32B3C♯43D♯4E44F♯42G♯45B4A♯46D♯5C♯57F♯5E588B5G♯59D♯6A♯510F♯6C♯611
The same 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
E44 pull, 4′ push
F♯45 push
G45′ push
A45′ pull
B46 push, 6′ pull
C56′ push
D57′ pull
E58 pull, 7′ push

Above and below

From E5 the scale is incomplete: this box has no D6. 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: G major, A Dorian, D Mixolydian.

E minor on other boxes: D/G melodeon, G/C melodeon.

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