in windows Microsoft edge Version 111.0.1661.44 (Official build) (64-bit) i went to
https://www.pgmusic.com/manuals/bbw2023full/index.htm

i clicked on the bing icon called discover at the top of the right hand sidebar.

i entered
https://www.pgmusic.com/manuals/bbw2023full/index.htm
in the aske me anything and pressed enter twice
i entered what's new in 203
result

You can find the new features in Band-in-a-Box 2023 in the following link: https://www.pgmusic.com/manuals/bbw2023full/index.htm¹. Some of the new features include over 70 new features and enhancements, including Drum Stems, 4 color schemes to choose from, enhanced chord settings, improved undo/redo operation, "Rebuild StylePicker" notification whenever rebuild is required, EZ RealTracks/RealDrums Folder Locations dialog, and more! ²³

Source: Conversation with Bing, 3/19/2023(1) PG Music - Band-in-a-Box for Windows. https://bing.com/search?q=what%27s+new+in+band+in+a+box+2023 Accessed 3/19/2023.
(2) PG Music - Band-in-a-Box for Windows. https://www.pgmusic.com/bbwin.htm Accessed 3/19/2023.
(3) PG Music - Band-in-a-Box for Windows - New Features. https://www.pgmusic.com/bbwin.new.htm Accessed 3/19/2023.
(4) PG Music Inc. - Band-in-a-Box, RealBand, and more. https://www.pgmusic.com/ Accessed 3/19/2023.
(5) Band-in-a-Box 2023 New Feature - pgmusic.com. https://www.pgmusic.com/bbw2023newfeatures2.htm Accessed 3/19/2023.

i entered
tell me about artist performance tracks

result

Artist Performance tracks are collections of Band-in-a-Box RealTracks demo songs, which have artist performances on the Melody track. They are different from a "RealTracks" track since they aren't generated by Band-in-a-Box, but rather are recordings of the Artist playing melodies or solos along to the Band-in-a-Box generated accompaniment tracks. They are great for learning-from-the-Pros, since all the Tracks include audio (stretchable to any tempo), notation, on-screen guitar, and guitar tab. Performances typically have a melody for two choruses, followed by a solo for two choruses (one simple chorus and a second advanced chorus)¹².

Source: Conversation with Bing, 3/19/2023(1) PG Music - Band-in-a-Box for Windows - Artist Performances. https://bing.com/search?q=what+are+artist+performance+tracks+in+band+in+a+box Accessed 3/19/2023.
(2) PG Music - Band-in-a-Box for Windows - Artist Performances. https://www.pgmusic.com/artistperf.php Accessed 3/19/2023.
(3) Band in A Box Review 2023: Pros and Cons - Gemtracks Beats. https://www.gemtracks.com/guides/view.php?title=band-in-a-box-review&id=586 Accessed 3/19/2023.
(4) Band in a Box Pro 2023 | Automatic Accompaniment Software - Jazz Guitar. https://www.jazzguitar.be/store/band-in-a-box.php Accessed 3/19/2023.
(5) PG Music - Online Manual - Band-in-a-Box 2022 Windows Upgrade. https://www.pgmusic.com/manuals/bbw2022upgrade/chapter3.htm Accessed 3/19/2023.

ymmv

Lenovo YOGA 900 Window s 10 Home 64bit 16GB RAM\2018 13” MacBook Air casio wk7500 presonus audiobox i2 usb interface
casio wk-7500
biab & realband 2023 everything pk both with Current builds