I finally got around to organizing my old MP3 collection in a way that's friendly to Plex (which is not easy) and I am so pleasantly surprised by Plexamp! I absolutely LOVE
Gospel Mp3 Collection ( Ladeilhen) - YouTube
Decl - Detsl. MP3 Collection (mp3)
Mp3 collection by T. Rex, CD-ROM with forvater - Ref:119604447
MP3 Collections
MP3 Collection - Top 100 (2 DVD Set) : Unknown : Free Download, Borrow, and Streaming : Internet Archive
slowly?) Replace my MP3 music collection with .flac / opus - suggestions needed : r/musichoarder