So is the wav file you drag in empty for the first 28 bars ? If you are just dragging the tracks into Reaper you would be best to just drag them from the main Biab app.
Thank you for your reply. For example, in a 32 bar BIAB song
The wave tracks dragged in are complete as well as the song sheet being complete in the BIAB VST. No gaps or empty bars.
When I press play in Reaper, the song starts in Reaper at bar 1 and plays the BIAB WAVs properly.
If I generate the tracks in BIAB VST (and not drag any of the BIAB WAVs), when I press play in Reaper, the BIAB VST jumps to bar 29 and starts, instead of bar 1.
If I press Play in BIAB VST, the song does start at bar 1 in BIAB VST.
So triggering play in Reaper causes the BIAB VST to start at bar 29 of a 32 bar song. I have tried this on a different song, the same thing happens but the Reaper start causes the BIAB VST chord sheet to jump to bar 22 to start.
I want to be able to record a guitar track in Reaper but follow the chord sheet in the VST.
Not sure why it's starting on 29, you have got a Sync offset you can try setting to -28 ?
What you are describing should not be happening. I can only suspect it is a Reaper setting which is causing the start of playback at Bar 29 instead of Bar 1. Reaper can be set to start playback from any bar. Check your Reaper Project Settings.
Thanks for the replies. Reaper Start Measure is set to start at 1
Setting the Sync Bar Offset to 29 now allows Reaper start to sync BIAB VST. So at least I can use this for now.
The problem is that every song will have to have a different offset.
In addition, it seems that when I engage Reapers Metronome, no matter what I set Count-in Measures to in Reaper, it no longer properly syncs at start. There is a lag of 1 to 3 measures before BIAB starts. I have tried this with 1 and 2 measures in Reaper, and adjusting the BIAB Sync Bar offset up and down by 1.
So the best I can do is not use a count-in measure but at least I can now jam using the BIAB VST.
I purchased BIAB a couple of years ago when the VST was first introduced and felt like I was beta testing it, so I haven't touched it until I purchased the 2023 version a couple of days ago. I am hoping that the current problem is fixable on my system.
What you are saying sounds crazy. Can you tell us what version of BIAB and the BIAB VST you have? Also can you upload the BIAB file (.mgu) so we can test?
As an update, I spoke to the Live Chat and in order to get close to syncing, I had to set both Reaper and BIAB properties to Run As Admin (Windows 10).
Although this got me very close, I later found I need to have Reaper's Play cursor starting on Bar 2 (with the Reaper's Start Measure set to 1) and when I hit Play on Reaper, BIAB immediately jumps to Bar 2 and stays in sync. At the end of the BIAB Song, both will loop to Bar 1 and stay in sync for multiple loops. There does seem that BIAB VST is late by a 1/8 note or so, especially noticeable on very slow-tempo songs.
However, if I have Reaper's play cursor at Bar 1 and press Play, BIAB starts out of sync and the BIAB Sync Bar Offset just makes it worse so it is set to 0.
Not the end of the world for what I need but still not ideal.
Hi gwp99! Would it be possible for you to upload some screenshots or (better yet) a screen recording of the problem? I have never heard of such behaviour in the plugin so it would be helpful for me to see your setup and process in order to try and reproduce/fix the problem on my end. You could attempt to upload the content here or email it to me directly at aguy@pgmusic.com.
I am glad you got Adar to check into this. I do understand workflow using BIAB, BIAB-VST and Reaper is important to getting it all working smoothly. Also the fact that BIAB always likes to put those two bar lead-in clicks which are not always needed. So I can see where the synch may be an issue at times. But I can tell you with my workflow this has never been a problem.
Band-in-a-Box 2026 for Windows Special Offers End Tomorrow (January 15th, 2026) at 11:59 PM PST!
Time really is running out! Save up to 50% on Band-in-a-Box® 2026 for Windows® upgrades and receive a FREE Bonus PAK—only when you order by 11:59 PM PST on Thursday, January 15, 2026!
We've added many major new features and new content in a redesigned Band-in-a-Box® 2026 for Windows®!
Version 2026 introduces a modernized GUI redesign across the program, with updated toolbars, refreshed windows, smoother workflows, and a new Dark Mode option. There’s also a new side toolbar for quicker access to commonly used windows, and the new Multi-View feature lets you arrange multiple windows as layered panels without overlap, making it easier to customize your workspace.
Another exciting new addition is the new AI-Notes feature, which can transcribe polyphonic audio into MIDI. You can view the results in notation or play them back as MIDI, and choose whether to process an entire track or focus on specific parts like drums, bass, guitars/piano, or vocals. There's over 100 new features in Band-in-a-Box® 2026 for Windows®.
There's an amazing collection of new content too, including 202 RealTracks, new RealStyles, MIDI SuperTracks, Instrumental Studies, “Songs with Vocals” Artist Performance Sets, Playable RealTracks Set 5, two RealDrums Stems sets, XPro Styles PAK 10, Xtra Styles PAK 21, and much more!
Upgrade your Band-in-a-Box for Windows to save up to 50% on most Band-in-a-Box® 2026 upgrade packages!
Plus, when you order your Band-in-a-Box® 2026 upgrade during our special, you'll receive a Free Bonus PAK of exciting new add-ons.
If you need any help deciding which package is the best option for you, just let us know. We are here to help!
Band-in-a-Box® 2026 for Windows® Special Offers Extended Until January 15, 2026!
Good news! You still have time to upgrade to the latest version of Band-in-a-Box® for Windows® and save. Our Band-in-a-Box® 2026 for Windows® special now runs through January 15, 2025!
We've packed Band-in-a-Box® 2026 with major new features, enhancements, and an incredible lineup of new content! The program now sports a sleek, modern GUI redesign across the entire interface, including updated toolbars, refreshed windows, smoother workflows, a new dark mode option, and more. The brand-new side toolbar provides quicker access to key windows, while the new Multi-View feature lets you arrange multiple windows as layered panels without overlap, creating a flexible, clutter-free workspace. We have an amazing new “AI-Notes” feature. This transcribes polyphonic audio into MIDI so you can view it in notation or play it back as MIDI. You can process an entire track (all pitched instruments and drums) or focus on individual parts like drums, bass, guitars/piano, or vocals. There's an amazing collection of new content too, including 202 RealTracks, new RealStyles, MIDI SuperTracks, Instrumental Studies, “Songs with Vocals” Artist Performance Sets, Playable RealTracks Set 5, two RealDrums Stems sets, XPro Styles PAK 10, Xtra Styles PAK 21, and much more!
There are over 100 new features in Band-in-a-Box® 2026 for Windows®.
When you order purchase Band-in-a-Box® 2026 before 11:59 PM PST on January 15th, you'll also receive a Free Bonus PAK packed with exciting new add-ons.
Upgrade to Band-in-a-Box® 2026 for Windows® today! Check out the Band-in-a-Box® packages page for all the purchase options available.
Band-in-a-Box 2026 Video: The Newly Designed Piano Roll Window
In this video, we explore the updated Piano Roll, complete with a modernized look and exciting new features. You’ll see new filtering options that make it easy to focus on specific note groups, smoother and more intuitive note entry and editing, and enhanced options for zooming, looping, and more.
Band-in-a-Box 2026 Video: AI Stems & Notes - split polyphonic audio into instruments and transcribe
This video demonstrates how to use the new AI-Notes feature together with the AI-Stems splitter, allowing you to select an audio file and have it separated into individual stems while transcribing each one to its own MIDI track. AI-Notes converts polyphonic audio—either full mixes or individual instruments—into MIDI that you can view in notation or play back instantly.
Bonus PAK and 49-PAK for Band-in-a-Box® 2026 for Windows®
With your version 2026 for Windows Pro, MegaPAK, UltraPAK, UltraPAK+, Audiophile Edition or PlusPAK purchase, we'll include a Bonus PAK full of great new Add-ons for FREE! Or upgrade to the 2026 49-PAK for only $49 to receive even more NEW Add-ons including 20 additional RealTracks!
These PAKs are loaded with additional add-ons to supercharge your Band-in-a-Box®!
This Free Bonus PAK includes:
The 2026 RealCombos Booster PAK:
-For Pro customers, this includes 27 new RealTracks and 23 new RealStyles.
-For MegaPAK customers, this includes 25 new RealTracks and 23 new RealStyles.
-For UltraPAK customers, this includes 12 new RealStyles.
MIDI Styles Set 92: Look Ma! More MIDI 15: Latin Jazz
MIDI SuperTracks Set 46: Piano & Organ
Instrumental Studies Set 24: Groovin' Blues Soloing
Artist Performance Set 19: Songs with Vocals 9
Playable RealTracks Set 5
RealDrums Stems Set 9: Cool Brushes
SynthMaster Sounds Set 1 (with audio demos)
Android Band-in-a-Box® App (included)
Looking for more great add-ons, then upgrade to the 2026 49-PAK for just $49 and you'll get:
20 Bonus Unreleased RealTracks and RealDrums with 20 RealStyle.
FLAC Files (lossless audio files) for the 20 Bonus Unreleased RealTracks and RealDrums
MIDI Styles Set 93: Look Ma! More MIDI 16: SynthMaster
MIDI SuperTracks Set 47: More SynthMaster
Instrumental Studies 25 - Soul Jazz Guitar Soloing
Artist Performance Set 20: Songs with Vocals 10
RealDrums Stems Set 10: Groovin' Sticks
SynthMaster Sounds & Styles Set 2 (sounds & styles with audio demos)
One of our representatives will be happy to help you over the phone. Our hours of operation are from
6:00AM to 6:00PM PST (GMT -8) Monday thru Friday, and 8:00AM to 4:00PM PST Saturday. We are closed Sunday. You can also send us your questions via email.
One of our representatives will be happy to help you on our Live Chat or by email. Our hours of operation are from
6:00AM to 6:00PM PST (GMT -8) Monday thru Friday; 8:00AM to 4:00PM PST (GMT -8) Saturday; Closed Sunday.
Dansk
Deutsch - Windows
Español
Français - Windows
Italiano - Windows
Nederlands
Polski
Português
Svenskt
русский
Japanese
Simplified Chinese
Traditional Chinese
Korean