The magazines at the Biblios tab offer presentations and reviews or recordings by 21st century conductors and musicians but there are a lot of free or by subscription concerts that can be watched live or on demand. 

Live Concerts
Make sure you choose to view the full concerts based on the concert time length.

1Furtwangler [various conductors] (free)
Achille Maccapani [concerts] (free)
ARD (free) and ARD Composers (free)
arte concert(free)
AVROTROS Klassiek (free)
BRSO (audio on demnad) (free)
BRSO (konzertvideos) (free)
Classical Vault 1 Live Recordings (free)
Czech Philharmonic (free)
Detroit Symphony Orchestra (free)
DW Classical Music (free)
EuroArts Channel (free)
Filharmonia Narodowa (Poland) (free)
hr-Sinfonieorchester – Frankfurt Radio Symphony or ARD1(free)
Israel Philharmonic - הפילהרמונית הישראלית (free)
Klassik SWR Kultur (free)
NDR Klassik (free)
New York Classical Players (free)
Norwegian Chamber Orchestra (free)
Oslo Philharmonic (free)
Sinfonica de Galicia (free)
Sonorum Concentus & also check the Composer Sonorum Concentus channels at that site (free)
SPT [@SPT2648] (video & audio only) (free)
SW [András Schiff videos] (free)
Tapiola Sinfonietta (free)
WDR Klassik (free)
wocomoMUSIC concerts (free)
youtube (free with ads or Premium by subscription)

Berliner Philharmoniker Digital Concert Hall (by subscription or free samples)
medici.tv (by subscription or free samples)
mezzo (by subscription)

LP Records
Internet Archive Classical Music LPs (free)
Tsubame Classics (LPs] (free)

78rpm Records
CHARM
78rpm Records Digitized by George Blood, L.P.
Virtual Gramophon (tip: Search by composer name)
Library of Congress Jukebox

Cylinders
University of California Santa Barbara Library
The Cylinder Archive

PDF Databases for my personal use
(Please disregard)
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