I'm musically old-fashioned... Like,
really old-fashioned. Baroque music is my bread-and-butter, especially instrumental music.
Bach Brandenberg Concerti (no. 2 is my favorite, but they're all great)
Bach's St. John Passion (this movement is
Es Ist Vollbracht - "It is Finished")
Handel Concerto Grossi (
Messiah is another favorite, obviously):
I occasionally mix it up with some Rennaisance music:
https://youtu.be/4JWYIY3icUg
And I sing in a madrigal group. This is one of our standards:
https://youtu.be/VEXw7tk4F28
Though I also enjoy later-era symphonies:
https://youtu.be/ffYKCNY6kUk
(I could also go into soundtrack music, like John Williams and Howard Shore... but that's largely just an extension of the Romantic tradition, and no single piece stands out)
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My church mostly sings old-fashioned hymns, with simple piano accompaniment (I'm the pianist). Honestly, I'd be hard-pressed to name much 20th century contemporary Christian band music that I'm familiar enough with to say that I like (to be fair, the same is true for 20th century pop music as well). More often than not, I find electric guitars and drum kits can be a bit offputting for me; I just didn't grow up around that sound.
Instead, as if traditional hymns weren't old-school enough, I've recently (at the end of last year) discovered
Shape Note Singing, aka
Sacred Harp music. For those who don't know, it's an Early American four-part
a capella folk-hymn tradition which almost died out, but has been undergoing a revival (and is now even being sung in Europe).
I absolutely LOVE this style of singing! I can only describe it as simple, full-throated, and viscerally authentic. Because it's designed for lay-folk (not professionals), and is without any instrumental accompaniment, you'll notice that the first time through each song, they just sing solfege syables (e.g. fa, so, la...), to learn their parts. Another odd quirk is that the tune names don't always reflect the lyrical content.
If you're familiar with the song "Wayfaring Stranger", it belongs to this tradition:
Idumea (apparently used in a film called Cold Mountain?)
Jefferson (you'll recognize these lyrics; they are also set to a Hayden tune)
https://youtu.be/9ADiux2txiU
Ninety-third Psalm
https://youtu.be/87EceGEnIyo
Africa
https://youtu.be/lPTomRc8s48
Redemption (this one is actually newer -1959 - but is in the same style)
https://youtu.be/_Goc5-esHts
Easter Anthem
https://youtu.be/mWsBOsr_l5s