Roland V-Accordion FR-1x Owner's Manual page 52

FR-1x V-Accordion
Other settings
Free Bass Mode
NOTE
The note names on the bass buttons correspond to the MIDI note numbers. The note range of the Bass part is 1 octave.
NOTE
The actual sound range depends on the type of reed and footage.
52
F2 C3 G2 D3 A2
C#3 Ab2 Eb2 Bb2 F2
F2 C3 G2 D3 A2
C#3 Ab2 Eb2 Bb2 F2
B4
N. Europe
F2 C3 G2 D3 A2
C#3 Ab2 Eb2 Bb2 F2
Finnish
F2 C3 G2 D3 A2
C#3 Ab2 Eb2 Bb2 F2
F6 D6 B5 Ab5
E6 C#6 Bb5 G5
Eb6 C6 A5 F#5
D6 B5 Ab5
E2 B2 F#2 C#3 Ab2 Eb2 Bb2
C3 G2 D3 A2 E2 B2 F#2
E2 B2 F#2 C#3 Ab2 Eb2 Bb2
C3 G2 D3 A2 E2 B2 F#2
E2 B2 F#2 C#3 Ab2 Eb2 Bb2
C3 G2 D3 A2 E2 B2 F#2
E2 B2 F#2 C#3 Ab2 Eb2 Bb2
C3 G2 D3 A2 E2 B2 F#2
F5 D5 B4 Ab4 F4 D4 B3
E5 C#5 Bb4 G4 E4 C#4 Bb3
Eb5 C5 A4 F#4 Eb4 C4
F5 D5 B4 Ab4 F4 D4 B3
Ab3
G3
A3 F#3
Ab3 F3
(C3= note number 48)