Ugh, also looking for a way to digitalize mine, but all tools I’ve found are either way too complex or lack critical functions, like e. g. supporting patchwork families/split-up parents which have new children.

Thank you, already did so, when I’ve skimmed this thread earlier. Tempo was my second choice so far, Ultrasonic has worked better with my OS and headphones so far (usability-wise). Will see how Tempus works out.

I’m using Navidrome with Ultrasonic and Tempo on my phone, and have no such issue.

Navidrome does support multi-tags since a few updates ago.