You can be more specific by searching: \albumthumbs , \android\data\com.android.providers.media\albumthumbs and of course each individual album folder. First, it seems that album art is cached, so after deleting the offending album, closing the music player, and restarting the phone, it might still persist. If everything in the first step was tried and the album art has not changed, I would suggest changing the album's name.
With the current size that the Google Play Store has grown to in sheer number of apps available, it’s more than just a tough call to pick a definitive best in any category.
Rocket Music Player and Rocket Player Premium Unlocker will use a very small amount of your mobile data to download album art and use other features that require a connection.
However, it does not require a mobile connection to play your content. It has been downloaded by our millions of customers, and used with every device.
Of course pre-update, this did not occur as the cover art i've added actually did appear on my phone.
Of all the music players that I tested, Poweramp reproduces the best audio quality, thanks to the great rendering engine as well as massive equalizer, bass booster, reverb and effect settings.
So let's say I used ID3-Tag IT to add cover art for certain songs on my desktop that which are obviously read as local files via the Spotify Desktop application and show the cover art that i've attatched using the editor.
However, since the recent update when I sync a particular album that has some tracks that are both local files and songs already on spotify, the cover art for the local files do not appear whereas the cover art for the songs already on Spotify do.
This saves you from guessing how much storage space your local music is eating up.
That's especially important if you let the app cache music as it plays. The APK is signed by Google and upgrades your existing app.