While Audacity dominates the conversation for open-source audio editing, less commonly discussed is Mixxx. It's an impressive DJ software, fully open-source, and provides tools you'd expect in paid products like Rekordbox, but for free. It's fairly intuitive, with active community support, if you hit a snag. Worth exploring for your mixing needs without financial commitment.
This sounds like a GPT paragraph.
I'd like a service where I can upload a large folder of MP3s, and it would help organize them into albums, perform useful processing like ReplayGain normalization, BPM and key analysis, etc. It should also have a good playlist manager and player for desktop and mobile.
Some existing services allow you to add your own music files, like MP3s, but this often feels like a second-class citizen. Services like SoundCloud are focused more on social interactions, which I don’t really need.
Have I missed any services like this?
There's some growing dissatisfaction around algorithm-driven music services like Spotify. Also, these services carry the risk of music disappearing for various reasons. I think a service allowing curation of own MP3 collections could appeal a significant fraction of all music lovers out there.
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1: https://vox.rocks/