Finding more problems with BIAB that is driving me up a wall. I am currently learning the fine art of the walking bass as done in jazz and blues songs. So, that being said, here is what I am doing.

1. Load the style _BARREN.STY Barren Road Blues Shuffle along with the demo song. It uses RT #1546 Bass,Electic,CountrySwing Sw 085 which is marked as Gt in the Chart column.

2. Generate the song in the native key of E

3. Go to Notation and click on the Bass track

4. I see that the music notation is about 10% incorrect for what is playing in the following measures.

(Chorus 1) 9-10-19
(Chorus 2) 2-9-10-19
(Chorus 3) 2-19

So then I regenerated the song and found these measures alson had some errors. What was playing was not what the notation showed.

(Chorus 1) 9-10-14-15-17-18-19
(Chorus 2) 2-12-15-16-17-19
(Chorus 3) 2-3-12-15-16-19

5. Tried another key and found similar but not the same errors.

6. Loaded the utility style BLANKSW.STY and tired the same thing and found about 80% accuracy but 20% were found to be in error because various measures missed the notes that are actually playing.

6. In other words, nothing seems to be consistent except for fact that what is playing on the Bass track is not the same that is showing up in the music notation in the Notation view.

Why oh why is this happening. I can see this is not entirely useless as a learning tool BUT when learning to read music, 100% accuracy is called for.

Oh yes, using all the latest updates and patches in 2018 BIAB. Standard setup bla bla bla.

Looking for a plausible answer to the problem.

I learned to read music extremely well when there as no BIAB. I was the 2nd best music reader in my music program at age 19. I taught myself to read music at age 13 with nothing but my thinking cap, sheet music, a metronome and of course my discipline and obsession to do it accurately (huge hours practicing). Two years later I decided to take lessons. He jumped me directly to grade 10 classical guitar. I often think back of this guitar teacher as being a slight bit over enthusiastic at my level of progress but I had no problem reading the level 10 music. You don't need BIAB to learn to read music.

Even though what I am saying is true your question is a valid one and I am curious how they are getting music notation for real tracks. I would not be surprised if it is not accurate. Even a program like Melodyne (based upon the video) does not produce notation unless there are things I do not know about it. Maybe it can. BIAB is pretty good for writing notation in midi and it plays what is written perfect for me so far. That is my only use for BIAB notation.

FWIW, the Realtracks Charts (MIDI/Notation) are mostly transcribed by others after-the-fact. These are humans trying to replicate what another human played.
They are not recorded as MIDI during the recording session, but transcribed later.
As with all transcriptions you will have human error and interpretation variations.

Then, after that, the software slices/dices/mixes chunks of these tracks. So I'm thinking that how exact the MIDI transcription is originally, as well as Tempo, Resolution and other parameters come into play on top of the above.

This doesn't help solve your problem, but may explain some of the deviations you are seeing.

Well not waiting around for it to get fixed, I went another route and am happy with it. Not plugging any one piece of merchandise, I went out and bought Hal Leonard's Bass Method Complete Edition.

What I really like about it is that there is absolutely zero tab in the book. It is 100% music notation. So, if I am to make progress, I have to read the music, which I never did before. With 172 music examples included I now am putting those chords in BIAB in various styles to try and match the books audio examples, and playing those examples from the book by reading the music notation in the Bass Clef.

I am having an absolute ball with this book and BIAB. I can now play the lesson examples as long as I want and at any speed I want. Too hard? Slow it done. Too easy? Speed it up.

The good thing is that I can't go any further in the book until I grasp the fine art of reading music in the previous examples.

I have now graduated to the 2nd grade when it comes to reading music and I have a long way to go. Been a tab based dependent for way too long.

Wonderful update. I've got no doubt that with your attitude and determination you'll accomplish your mission.

I really admire what you've accomplished so far and am looking forward to reading more updates!

Sounds very good. I forgot to mention that when I started I learned to read from Mel Bay books. I did all of them. They explain the timing (triplets divide the beat in 3, 1/16ths divide the beat in 4, 1/8ths divide the beat in 2). Here is something important not just for reading music but for everything. Keeping track of the beat with your foot (or if you want quiet with your toe or your heal coming close to the floor but not hitting it). At times keeping count is critical. (1 e & a) for 1/16ths or (1 trip let) for triplets and counting these out when first learning 1/4 note triplets. I have never used tab. I know my guitar finger board so well that I basically can read anything in any position including up an octave. I can quickly find a variety of fingerings and one that works (no need for tab) Once you get through the books (very important) go to Jazz lead sheets and learn to play them. I am not a bassist but I think it would be wise to learn to play the melody on bass in addition to the arpeggios, etc. I think there are some Berklee books on advanced very difficult reading. I had trouble because of the combo of very large sudden jumps of like an octave or more without warning and syncopation. They guy who was better than I was could handle it without any difficulty at all. I think he had a mind that worked at a faster clock speed than mine (a natural ability that I would never know or understand). Of course I had no difficulty understanding the timing and where to place the fingers. The difference is he could play it perfect first time and I had to practice it. In a way I understand. At age 63 I can't SIGHT read as well as I use to. It is all about relative sharpness and age is one of the factors. He as my age so not the only one...lol.

Regarding why the real track notation is inaccurate after I submitted my post I was thinking exactly what Rharv said. Glad I came back to check.

When I bought my 1st bass in 1974 I received 3 free lessons and a copy of Hal's most basic book. It served me well - particularly when I moved to cello in 2003.