Stradella Bass System Layouts

Here you can find a detailed diagram of the Stradella bass system and a list of chords for each different size of accordion, from 8 to 120 bass buttons.

120 Bass Accordion Chart

The 120 bass layout has 2 columns of single bass notes (roots and counter basses) and 4 columns of chords (Major, minor, Dominant 7th, and… Read More »120 Bass Accordion Chart

96 Bass Accordion Chart

The 96 bass layout has 2 columns of single bass notes (roots and counter basses), 4 columns of chords (Major, minor, Dominant 7th, diminished 7th), and… Read More »96 Bass Accordion Chart

80 Bass Accordion Chart

The 80 bass layout has 2 columns of single bass notes (roots and counter basses), 3 columns of chords, Major, minor, Dominant 7th, and 16… Read More »80 Bass Accordion Chart

72 Bass Accordion Chart

The 72 bass layout has 2 columns of single bass notes (roots and counter basses), 4 columns of chords (Major, minor, Dominant 7th, diminished 7th)… Read More »72 Bass Accordion Chart

60 Bass Accordion Chart

The 60 bass layout has 2 columns of single bass notes (roots and counter basses), 3 columns of chords (Major, minor, Dominant 7th), and 12… Read More »60 Bass Accordion Chart

48 Bass Accordion Chart – 12×4

The 48 bass (12×4) layout has 2 columns of single bass notes (roots and counter basses), 2 columns of chords (Major, minor), and 12 rows.… Read More »48 Bass Accordion Chart – 12×4

48 Bass Accordion Chart – 8×6

The 48 bass (8×6) layout has 2 columns of single bass notes (roots and counter basses), 4 columns of chords (Major, minor, Dominant 7th, diminished… Read More »48 Bass Accordion Chart – 8×6

40 Bass Accordion Chart

The 40 bass layout has 2 columns of single bass notes (roots and counter basses), 3 columns of chords (Major, minor, Dominant 7th), and 8… Read More »40 Bass Accordion Chart

32 Bass Accordion Chart

The 32 bass is a small accordion that is perfect for children who want to learn to play the instrument. It’s also a good choice… Read More »32 Bass Accordion Chart

24 Bass Accordion Chart

The 24 bass layout has 1 column of single bass notes (roots and counter basses), 2 columns of chords (Major, and minor), and 8 rows.… Read More »24 Bass Accordion Chart

12 Bass Accordion Chart

The 12 bass accordion is a beginner’s model which makes it an excellent choice for any child to begin on. It has 1 column of… Read More »12 Bass Accordion Chart

8 Bass Accordion Chart

The 8 bass is the smallest Stradella bass accordion. It has 1 column of single bass notes (roots), 1 column of chord buttons (Major), and… Read More »8 Bass Accordion Chart