Add the "Music collecting" notes.

Author: paveloom

content/notes/Music_collecting/What_format_to_store_in.md

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+title = "What format to store in?"
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+
+While lossless formats ([FLAC](https://en.wikipedia.org/wiki/FLAC), [WAV](https://en.wikipedia.org/wiki/WAV)) are great for preserving original quality, using them for a local music collection can result in significant usage of storage space. If that's undesirable, using lossy formats can solve the problem.
+
+While choosing between [many lossy audio coding formats](https://en.wikipedia.org/wiki/Audio_coding_format#List_of_lossy_formats), transcoding to the [Opus](https://en.wikipedia.org/wiki/Opus_(audio_format)) format in the VBR mode with highest compression level is a good way of having the best quality at the smallest file size.
+
+Lossless audio files can be transcoded using [FFmpeg](https://ffmpeg.org) with the [`libopus`](https://ffmpeg.org/ffmpeg-codecs.html#libopus-1) audio encoder. The default settings for that encoder have `vbr` set to `on` and `compression_level` set to 10 (the highest).
+
+Thus, it is enough to call
+
+```bash
+ffmpeg -i "file.flac" -c:a libopus "file.opus"
+```
+
+See also [my script](https://gitlab.com/paveloom-g/other/convert-to-opus) with an example of size difference for a release.

content/notes/Music_collecting/Where_to_download_lossless_music_from.md

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+title = "Where to download lossless music from?"
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+
+There are three widely known services providing music in lossless formats:
+
+- [Deezer](https://www.deezer.com/) [*16-Bit/44.1 kHz FLAC*]
+- [Qobuz](https://www.qobuz.com/) [*16-Bit/44.1 kHz FLAC*, *24-Bit/96 kHz FLAC*]
+- [TIDAL](https://tidal.com) [*16-Bit/44.1 kHz "HiFi" FLAC*, *24-Bit/44.1 kHz "MQA" FLAC*]
+
+You can obtain tokens for these at [Firehawk52](https://firehawk52.com/).
+
+Additionally, [Bandcamp](https://bandcamp.com) supports FLAC and WAV as well.
+
+Alternatively, download from a proxy service:
+
+- [DoubleDouble](https://us.doubledouble.top)
+- [Lucida](https://lucida.to)
+
+Download clients:
+
+- [`streamrip`](https://github.com/nathom/streamrip)
+
+More information:
+
+- [Rentry: Firehawk52](https://rentry.co/firehawk52)
+
+Finally, if all else fails, check P2P networks:
+
+- [BitTorrent](https://en.wikipedia.org/wiki/BitTorrent)
+- [Soulseek](https://en.wikipedia.org/wiki/Soulseek)

content/notes/Music_collecting/_index.md

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+title = "Music collecting"
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+
+While streaming services (e.g., Spotify, Apple Music, etc.) are popular, they don't provide real ownership of the music releases. Rather, you are renting the music, paying either via money or attention. Any release can get removed from such services at any time for whatever reason, and you might not even notice it. The following notes focus on the use case of having a local collection of music files.
+
+Child notes:
+
+- [Where to download lossless music from?](@/notes/Music_collecting/Where_to_download_lossless_music_from.md)
+- [What format to store in?](@/notes/Music_collecting/What_format_to_store_in.md)