A complete professional DAW that is free for Windows. While not an "auto-accompaniment" tool by default, it includes powerful MIDI tools and virtual instruments for building tracks.
| Option | Description | Link | | :--- | :--- | :--- | | | Full program (2025 or latest version). No save function after trial ends. | PG Music official site | | Band-in-a-Box VST/AU Plugin Demo | Use the RealTracks styles inside your DAW (e.g., Reaper, Logic) for 30 days. | PG Music official site | | Older Version (2015) | PG Music gave away Band-in-a-Box 2015 for free permanently. It is outdated but fully functional. Search for "Band-in-a-Box 2015 free" on their forum/website. | PG Music Legacy section | | Open Source Alternative | MMA (Musical MIDI Accompaniment) – text-based, very powerful, completely free. | mellowood.ca/mma | bandin a box free version top
If you want to test the "Top" software legitimately, follow this workflow: A complete professional DAW that is free for Windows
PG Music (the developer) does not offer a perpetually free, fully functional DAW. Instead, they offer a and a Free Demo that never expires but has severe limitations. No save function after trial ends
: A free, text-based accompaniment generator that creates MIDI tracks based on user-supplied chords and directives. Quick Comparison Table
If you need an auto-accompaniment tool without the price tag, these free programs are the top-rated choices for 2026: