Ok whoa! Let’s just all settle down. Cello-bass?
You my friend have wandered into a forum full of grizzled double bass players! Welcome. You want to play this crazy instrument so you’re definitely one of us, but you’re obviously at the beginning of your journey. That’s great, we are all somewhere along the same path. You will get a lot of different opinions here. Take them in and do your best. If we seem opinionated it’s because we’ve been there and we care.
I got a teacher when I started and one of the first things he showed me was what you described. It was the first exercise in my Streicher Method book. I remember him telling me that the first finger will tend to creep up as you go up the scale and to be aware and stretch back when going back down. Like others said, it’s not a very musical exercise for a beginner because it’s unfamiliar to the untrained ear. But it was my first assignment and I took it on. Go ahead and do it but do it carefully and don’t give it too much emphasis at this point in your learning. I would suggest working on your Bb scale in that same “half position”. Bb-1, C-4, D-open, Eb-1, F-4, G-open, A-2, Bb-4. The numbers are your finger for that note. This will give you something you can hear as a scale. Remember that a finger placed down until not needed. So when you play the first Bb with the first finger, keep that finger down on the fingerboard when you play the C. Then remove all the fingers for the open D string then do the same thing for the Eb with the first finger, keeping it down while you play the F with the fourth finger, etc. Descending you will have all the fingers in the board for the Bb on the G string then lift the fourth finger to reveal the second finger already down on th A note. The reason why we do this is to create support for the fingers and consistency. Only apply the amount of pressure to the finger to make a clear note, experiment where that threshold is. Anything more is wasted effort.
This may help visualize. This guy uses a little vibrato which is unnecessary for you at this point.
You my friend have wandered into a forum full of grizzled double bass players! Welcome. You want to play this crazy instrument so you’re definitely one of us, but you’re obviously at the beginning of your journey. That’s great, we are all somewhere along the same path. You will get a lot of different opinions here. Take them in and do your best. If we seem opinionated it’s because we’ve been there and we care.
I got a teacher when I started and one of the first things he showed me was what you described. It was the first exercise in my Streicher Method book. I remember him telling me that the first finger will tend to creep up as you go up the scale and to be aware and stretch back when going back down. Like others said, it’s not a very musical exercise for a beginner because it’s unfamiliar to the untrained ear. But it was my first assignment and I took it on. Go ahead and do it but do it carefully and don’t give it too much emphasis at this point in your learning. I would suggest working on your Bb scale in that same “half position”. Bb-1, C-4, D-open, Eb-1, F-4, G-open, A-2, Bb-4. The numbers are your finger for that note. This will give you something you can hear as a scale. Remember that a finger placed down until not needed. So when you play the first Bb with the first finger, keep that finger down on the fingerboard when you play the C. Then remove all the fingers for the open D string then do the same thing for the Eb with the first finger, keeping it down while you play the F with the fourth finger, etc. Descending you will have all the fingers in the board for the Bb on the G string then lift the fourth finger to reveal the second finger already down on th A note. The reason why we do this is to create support for the fingers and consistency. Only apply the amount of pressure to the finger to make a clear note, experiment where that threshold is. Anything more is wasted effort.
This may help visualize. This guy uses a little vibrato which is unnecessary for you at this point.