I don't tend to hang out here as I am losing my love of all things Apple, anyway, I decided to see what you all had to say about the 5-star ratings debacle that is iOS10 music.app. I'm been on a thread over at Apple Communities since iOS10 went live looking for solutions to this. I've been doing some testing with different strategies as well.
I'll admit I haven't had the chance to read all of this thread yet so you have probably covered all of this, but in case you haven't what we've found so far is at:
https://discussions.apple.com/thread/7664472
Basically the bottom line is that third party apps can update/change 5-star ratings but it seems to only work if you sync though wifi or cable connection to iTunes. They do not work if you sync through iCloud Library as they use the the native music.app and Music will not recognize the rating change unless Siri initiates it.
The work around for if you use Music with iCloud Library is to create rating playlists and then add your track to the rating playlist to be later updated in iTunes.
Have I missed any? Any better solutions so far?
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I have 24,000+ songs, some 12,000 are unrated (it used to be 8,000 unrated but iCloud in iOS9 somehow lost the ratings of some 4,000 songs Arhg!) Here is how I use the 5-star rating to curate my music.
1-star = music that I decided I don't like and I will eventually delete from my Library. I should have no one star ratings in my library because I deleted them. This can be replaced with the Dislike.
2-stars = album intros, or talky bits in albums. Stuff I would not listen to as an individual track.
3-stars = average music. It's good background music but nothing particularly memorable. You know, 70% of most albums (probably ~70% of my music)
4-stars = stuff I like (probably ~30% of my music). I set LOVED in parallel to this.
5-stars = My keepers. Music I always want on my phone - about <1% of my music. Also set to LOVED.
Now considering that I have a 128GB iphone and I keep around 32GB of music on it and I am often in locations where there is no cell phone coverage so I can stream, how do I replace this with a LOVE/DISLIKE rating that achieves the same?
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You are wrong. Perhaps you are a youngster and don't remember the "early years" but star ratings have been around for a long time before Genius was ever a thing. Genius may be converting star ratings into a binary form for music predication now, but that was never the purpose of star rating originally.