I'm posting this in case someone else has this problem and goes searching for an answer.

Band-in-a-Box 2017 does not start up in OS 10.13.2 unless you download and install Update 202 for Mac found here:

Mac Update 202


BIAB 2023 Audiophile, 24/60 Core M2 Mac Studio Ultra/8TB/192GB Sonoma, M1 MBAir, 2012 MBP
Digital Performer 11, LogicPro
Finale27.4, Dorico5, Encore5, SmartScorePro64, Notion6, Overture5