I'd say that any of Beethoven's Overtures are typically intense listening:
http://www.arkivmusic.com/classical/Name/Ludwig-van-Beethoven/Composer/858-1
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http://www.all-about-beethoven.com/overtures.html
Prometheus op 43
Coriolanus op.62
Egmont op. 84
King Stephen op.117
Leonora no. 1 op.138
Leonora no. 2 op. 72 a
Leonora no. 3 op. 72 b
Fidelio (Leonora no. 4) op. 72 c
The Ruins of Athens op. 113
Beethoven's "Appassionata" Sonata; Symphonies #3, #5, #9
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Brahms: "German Requiem" w/parts using full chorus, very intense.
Also, his "Hungarian Dances"
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Dvorak: "Slovanic Dances" and "Slovanic Rhapsodies"
http://www.arkivmusic.com/classical/Drilldown?name_id1=3313&name_role1=1&bcorder=1&genre=55
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Liszt piano music: Hungarian Rhapsodies & Mephisto Waltzes:
http://www.arkivmusic.com/classical/Drilldown?name_id1=7203&name_role1=1&bcorder=1&genre=119
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Sibelius: Violin Concerto
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Wagner:
"Ride of the Valkyres" / "Rienzi" Overture/ Götterdämmerung: Prelude
http://www.arkivmusic.com/classical/Name/Richard-Wagner/Composer/12732-1
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