@mp3tag Florian, I'm slowly migrating from PC to Mac and Mp3tag might be one of the tools I keep using on Mac as well.
However, I use "Sentence case" for the TITLE field a lot (in Windows) and I could not find this conversion in the macOS (trial) version… (Only upper/lower/mixed I believe?)
Is it not implemented there, or did I not look in the right places?