O/T bariolage question

[MichelRE]

I know this isn't strictly speaking a notation/engraving question. it's a performance-related question.

So, I'm attempting to write a bariolage passage in a work, and have my doubts about whether it is comfortable to play or even possible.
I mean, I can play the notes myself on my viola, but since I'm a very raw beginner, I obviously don't have the technical skill to actually achieve a bariolage effect. I can only check the fingering.

Is this playable?
(it's for viola, and it's in C clef)
I've put in a few open string markings, but those are temporary, they're there to help me keep track of what's going on.

[David Ward]

I would be surprised if it is not playable as bariolage (depending on tempo), but I have never played the viola and can't claim to be an expert. If someone more knowledgeable doesn't respond here, I can put it before a viola player, should you wish.

[OCTO]

I would prefer seeing it together with the clef (if you could post it again) including the tempo information, and also the open string separated from the fingered notes.

[John Ruggero]

Is the open string symbol on the wrong notes?

[MichelRE]

it's at around 120 = quarter.
any downstem notes are played on III (4th finger, on the G string)

I didn't put every open string, I wasn't sure exactly if I should.
I'll try and take another image, and mark every open string, and put string numbers.
or maybe transpose it to violin range just for the picture.

Elaine Gould's example of bariolage seems terribly busy with every string numbered, and open strings marked.

[RMK]

As MichelRE said:

(it's for viola, and it's in C clef)

[MichelRE]

I temporarily squished the music together to get a passage all on one staff.
I included string numbers, all the open strings, changed the tuplets, and put the passage in treble clef.
Same strings, same notes... though the string number won't work if you're thinking violin. (you'd have to change the III to IV)

[MichelRE]

I edited my previous post to include an updated and more detailed example of the passage in question, including slurs and string numbers.

[OCTO]

Actually, the empty string should be the one that is separated from all other notes, and in that case you would not need to write 0. Having this way is very confusing, I have to admit.
(p.s. The third example is from Brandenburg concerto No 4, 3rd movement. Not bariolage but a clear notation of the open string - IGNORE someone's wrong fingering.)

[OCTO]

You can attach these measures as musx file (have 25.5).
Perhaps the best way to check if a bariolage is playable is to play it on piano: one hand plays only the open string, the another hand plays the fingered pattern.