I prefer "Requiem For A Dream".
Relative noob here too. The Sibelius symphonies blew my dick off the first time I heard them. Vanska/Lahti cycle is my favourite.
Mozart's Requiem was my first intro to classical and is a tough act to follow. It may be that minor works resonate better with you.
Try Mozart's 20th piano concerto in D minor (Perahia), his 40th symphony in G minor (Mackerras) and Don Giovanni opera (Levine - Met on DVD).
Schubert's mass D950 in E flat (Weil - AOE) and his unfinished 8th symphony in B minor (Abbado - COE) too.
Beethoven's 9th symphony (Klemperer or Fricsay) and Bach's keyboard concerto in D minor BWV 1052 (Gould - Bersntein) to spice it further.
Brahms' Ein Deutches Requiem (Klemperer) and Chopin's 2nd piano sonata in B Flat minor (Argerich) for a romantic twist.
Repeated persistent listening is key with classical. It is a journey so worth taking.
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