Thanks mate - sorry I was unable to find this thread when I checked.
I’ve realised I should have been clearer in my request - what I’m after is a “comments” field for Tidal tracks. Not sure if this is even technically possible but it would really help - I know you have this field for my iTunes tracks but I can’t see it for Tidal tracks 
I came here looking for the exact same thing! I’m considering switching from a Serato-based workflow with local tracks organized in iTunes to a DJay-based one with streaming (downloaded to the locker, of course - I don’t trust wifi for a real gig). The only thing that’s holding me back is that I make extensive use of comments on the individual tracks to note things like vocal style, tone, general vibes, and so on. I get almost all my music from Beatport, so I signed up for a trial of their streaming service, and… it doesn’t seem like there’s any way to leave comments on a track. I can see all the comments on my iTunes tracks, but there just isn’t a comments column available for the Beatport tracks. 
Serato does let me leave comments on the streaming tracks from Beatport, though. Largely, I prefer DJay, but this is a must-have feature for me, so sadly I’m considering switching back to Serato - it’s either that or give up on streaming services, which I don’t want to do either. I’d love to see this feature make it into the product soon!
I’m using the Mac version, incidentally. I’d love to switch to iPad, but I use Phase, so I’ll have to wait until there’s Phase support on the IOS version.
Ahem
