I was looking for KDE music players. Only Amarok and Elisa are KDE projects out of the ones you listed. KDE's six music players (yes I found another one) are Amarok, AudioTube, Elisa, JuK, Soundcloud Player for Plasma Bigscreen (great name) and Vvave. Source: over 1 year ago

The second app doesn't have local file music functionality, but is basically another Youtube Music Premium access app for KDE....again, for free. It is called AudioTube. Source: almost 2 years ago

Getcoldturkey.com is also another great help, lofi.co has pretty aesthetic lofi vibes if you like that kind of music when you study, sometimes when I cant find my phone I'll use pomofocus.io. Source: over 1 year ago

Other useful links you might like/want : https://www.imissmylibrary.com/ , https://asoftmurmur.com/ , https://z-lib.org/ , https://imissmycafe.com/ , https://lofi.co/ , https://evernote.com/. Source: almost 2 years ago

So, I just found this neat little website today. You know the lofi study videos on youtube, right? Well this is like that. But you can customize it! I just thought it was really cute and calming, so I thought maybe some of you guys would enjoy it too :). Source: over 2 years ago

For anyone who likes this, check out https://lofi.co/. Source: over 2 years ago

I made this illustration as part of an animated interactive website to play to accompany music. Source: over 2 years ago