Any idea how relevant this is for 2023?

10. What are the recommended system requirements for Band-in-a-Box?
Band-in-a-Box runs on Windows 7 / 8 / 8.1 / 10 (32 or 64-bit) and require at least a 1.0 GHz processor (2GHz+ multicore recommended). Basic MIDI features require a less powerful computer than the latest RealTracks features. For best performance, we recommend a fairly up-to-date computer with Windows 7 or higher, a fast processor, and at least 2GB RAM. Without RealDrums or RealTracks, you need a minimum of about 1GB of free hard disk space (15GB recommended). More hard disk space is required for the RealTracks and RealDrums, roughly 100-400MB per Set. A full install of the PRO version (including RealTracks/Drums) requires about 15 GB. A full install of the MEGAPAK version requires about 25 GB. The UltraPAK is about 120 GB total, and you have the option of either downloading, or shipping "pre-installed" on a USB hard drive. You can run the program directly from the hard drive or install on your computer.

A MIDI sound source is required. This could be a sound card, a MIDI keyboard, MIDI sound module, or software synthesizer. We include a software synthesizer with Band-in-a-Box.

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BiaB 2025 Windows
For me there’s no better place in the band than to have one leg in the harmony world and the other in the percussive. Thank you Paul Tutmarc and Leo Fender.