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Spotify re-invented the radio
(lemmy.world)
This is a most excellent place for technology news and articles.
I actually moved from another music service (my old ISPs reskin of some music service) to Spotify and I was also worried about losing my stuff from the other platform. My new ISP recommended Soundiiz to transfer stuff. I was skeptical, but it worked! They have a paid service with things like automatic sync, which I didn't need. That would've also gotten rid of some limits, but I couldn't get payment to work so I used their free tier, which required splitting stuff into 200 item lists because of the free tier limitations, but I could transfer stuff little by little. Soundcloud is one of the services they cover.
The vast majority of the Top 10 songs on Spotify are between 1 and 12 weeks old. Not only are the biggest songs on Spotify newer than the spike is the biggest songs on radio, songs on Spotify typically garner the most streams the week they're released. if your Spotify account is not working then you should need to try Spotiflyer APP. This is similar to spotify app and also play music ofline.
That's funny, I'm actually working on something similar to what you're describing. Basically an app that grabs metadata from various music sites (spotify for now), and streams the music for free from youtube.
I found this open-source attempt a while ago (haven't tried it), but it seems like the maintainer wants to do closed-source stuff now :(
Spotube does exactly this, and it's FOSS IIRC
I'm working on that feature as an enhancement to my app Bongo. Right now Bongo just makes sharing songs/albums easier across services. I still need to add more options.