What Are Your Reference Discs? or Specific Reference Tracks

My Dozen ….
01/12: Gounod-Faust / Bizet-Carmen RCA LSC-2449-45CVp  
02/12: Ballet Music From The Opera RCA LSC-2400
03/12: Grieg, Peer Gynt London CS-6049  
04/12: Massenet, Le Cid Klavier KS 522  
05/12: Walton, Facade Suite RCA SB-2039
06/12: Zero Mostel, Fiddler On The Roof RCA LSO-1093
07/12: Shchedrin, The Carmen Ballet, Melodiya ASD-2448
08/12: Albéniz, Suite Española Decca SXL-6355
09/12: Rimsky-Korsakoff, Scheherazade RCA LSC-2446
10/12: Offenbach, Gaîté Parisienne RCA LSC-1817
11/12: Arnold, English & Scottish Dances Lyrita SRCS-109
12/12: Casino Royale, Colgems COSO-5005

All the recordings mentioned are well recorded but might not challenge or tax a system to reveal its weaknesses. Beethoven Symphony No, 9/4th movement(Ode To Joy) will challenge any system. I have always played the Vaclav Neumann/Czech Philharmonic(live recording) Denon 81757 7575 2(CD format). Notice how few(if any) audio show demos of "Ode To Joy" on Youtube. 

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Michael Jackson - Thriller vinyl
Little Feat - Waiting for Columbus vinyl
Pink Floyd - The Wall Japanese pressing or MFSL CD
Steely Dan - Two Against Nature   CD
Nitty Gritty Dirt Band - Will The Circle Be Unbroken   vinyl
Supertramp - Crime of The Century   A&M Audiophile vinyl
Toronzo Cannon - The Chicago Way - Flac