Conundrum reading Bass Stave

[Pipemajor]

Hi all, Ive recently been going through my Medard Ferrero tutor and Im confused with some of the bass stave.
In this excercise, (hoping it comes out as its my first attempt at reducing files),some of the left hand single bass notes are written as two single notes an octave apart while in the next bar, the same notes are written as a single note. At first I thought it meant I had to play both base note and chord together, but at the end of the piece there are base note and chord together shown as 4 notes joined together.
Obvoiusly a non freebass accordion cant play 2 base notes an octave apart, so Im just wondering if anyone can give me a reason for writing the bass like this :?
All comments gratefully received :ch

 

[george garside]

? was it written for a piano

george

 

[Pipemajor]

I don't think so George as it's part of the Ferrero Medard Tutor and all the CBA fingering is marked above and below the music. It's a puzzle :?

 

[debra]

Hi all, Ive recently been going through my Medard Ferrero tutor and Im confused with some of the bass stave.Bass.jpg
In this excercise, (hoping it comes out as its my first attempt at reducing files),some of the left hand single bass notes are written as two single notes an octave apart while in the next bar, the same notes are written as a single note. At first I thought it meant I had to play both base note and chord together, but at the end of the piece there are base note and chord together shown as 4 notes joined together.
Obvoiusly a non freebass accordion cant play 2 base notes an octave apart, so Im just wondering if anyone can give me a reason for writing the bass like this :?
All comments gratefully received :ch

Just ignore the octaves. Even on a freebass accordion you wouldnt be able to play these notes. (They only go down to E with very few exceptions.) Even a bass accordion only goes down to C so the octave of Gs cannot be played at all.)

 

[Pipemajor]

Thanks Paul, I sort of guessed it had to be wrong but I thought maybe I was missing something. Prabably just a typo error. As this is the 22nd edition you would have thought they might have noticed it :roll:

 

[Soulsaver]

Looks like piano to me (or free bass) - its showing 2nd & 1st chord inversions, 5th & 6th measures for example - which would not be possible on (just) stradella. Or maybe another error?

If you insist its not piano, then as with other method books I've seen, it is mixing up the way to present the notes to get you used to recognising the fact that they can be notated differently, in which case it is indeed intended to be C+CM.

But IIRC I've not come across mixing the notation method up in the same piece.