This solution includes a computer, but only for set-up...
Tracks stored to PC in chosen format.
iPod Touch has the tracks on it, and becomes a remote control for track selection
Simple, economical mini system with Bluetooth (good) or AirPlay (better, but needs wi-fi) to do the reproduction bit. Could be as simple as a Bose Soundlink Mini or B&W Zeppelin for ultimate low-key/no hifi to see here kind of thing.
Technics SL1210 MkII / SME 309 / Timestep PSU / Achromat / Denon DL-304
Phono stage PS Audio NuWave Phono Converter
Lossless / MP3 / Tidal > Roon > Bryston BDP-1USB > Marantz NA-11S1
Marantz UD7007 SACD/Blu-ray/DVD-V/DVD-A
Toshiba BDX1200 Blu-ray player (Zone A & Region 1)
Audiolab 8200AP pre-amp/processor
Power amp: Arcam P7
B&W 804S stereo (bi-amped), HTM4S centre, CDMSNT surrounds (5.0)
Sennheiser HD 700 headphones
Panasonic PT-AT6000 projector