Volume:
This is a little idea I had a while back, songs are all 48kbps AAC, downloaded from YouTube through PipePipe, a NewPipe fork.
Due to this low bitrate, this radio can work on EDGE mobile networks (~100kbps).
You can input the m3u8 stream into AIMP or any HLS-capable player.
The different radios are the actual playlists I have on my phone, just copied over.
You can even see descriptions of each playlist, what is each one about?