I love songs that completely change genre partway through. Can be slow acoustic songs that switch to fast techno; loud, bangy songs that turn calm and soft; rap songs with calm, piano-based choruses; whatever.

Examples would be:

• Still Loving You by Sonata Arctica
• Lost Winter Days by Alpine Universe
• Journey to the End by Windir
• Welcome to the Black Parade by My Chemical Romance.

I like it when the vocalist announces what's coming next, like yelling "GUITAR!" right before a guitar solo or "bring back the horns" right before the brass section kicks in or "sing it, girls" right before the female backups echo the refrain.

Siren noises and airhorns and generally post-ironic soundboard noises. Like remember DJs in the early 2000s? When the radio sounded like

(Tires screeching) Husky overly excited voice: you’re listening (Siren blaring) To the one and only (Red tailed hawk screech) (Machine gun noises) 97.4 (Dog barking) (mgm lion roar) KZRL “Krazy” FM (Choir sings hallelujah) Your one-stop-shop for hits from the 70s and 80s (Chorus from “don’t you forget about me” plays) (Guitar solo from Panama)

All those stupid noises are great when they get shoved into mid 2010s dubstep music, and when they are put into SoundCloud mashups.

I love when the track goes completely silent for a single rest after some buildup and then punches back into the full chorus. If that “gap” in noise is part of the melody itself it’s even cooler. It makes the following sound so much more impactful, even if the actual volume hasn’t increased by much.

I love that train track or horse gallop chugging rhythm some songs have.
Gives me feelings of movement forward, travel or progression.
Great car songs!

Muse - Knights of Cydonia, Roy Orbison - I Drove All Night is probably a good examples of this.

Mixing metal with other genres or introducing instruments or elements that you otherwise wouldn't expect in metal.

By now most of these are considered to be subgenres of metal but for me it blew my mind when I first encountered them.

Bands like Ayreon, Avantasia, Subscribe, Therion, Haggard, Nightwish, Ostura, just to name a few.

I quite enjoy it when songs sneakily build up, starting out with a mellow rhythm and after a few minutes, you find yourself in the middle of an epic solo on top of this thick carpet of rhythm, and it's all very much over the top, but it works, because of that slow build-up.

My favorite is when a high energy song does a soft version of the chorus towards the end of the song, and the singer sings more mellow, or sometimes even an octave down. Then the singer goes back into full energy and original octave for one line before all the instruments come back in at full volume.

Not sure if this is a trope per se, but I love when sounds don't sound "perfect" - the producer kept in a little vocal waver, or the snare isn't hit with the exact same intensity every time. The little imperfections make it feel/sound like real humans are playing the music!

Key change!

Music that is REALLY stereo. I recently-ish got a pair of open back planar magnetic headphones, which sound bloody brilliant. So wide, so open, so crisp! It's almost like VR for your ears with certain tracks and albums.

So ye! Songs that really lean hard on having fun with stereo, or just really well engineered music in general. I was FLOORED when I listened to Nine Inch Nails' The Downward Spiral for the first time with those things, so much fine detail and incredible audio engineering in that album. I'd honestly consider it one of the best engineered albums I've ever listened to, and I'm saying this as a huge Steely Dan fan.

Another go to for me is Pond's Man, It Really Feels Like Space Again. Psychedelic music just hits so incredibly well when I use those headphones, and this album in particular just really takes me through a friggen journey when listening to it.

Breakdowns. Chug chug chug chug chug Random growls and barks

Mmmmmmmmmm. Soothes my soul.

I like it when a chorus gets built up more on each repetition, either with the addition of more instrumental parts, new harmonies or background vocals, or a beat change that brings up the intensity.

Similarly, I like when that same effect happens within 2 halves of a chorus. Example of one I heard recently is the chorus of the song "Breathing" by ELLEGARDEN. The 2nd half adds a higher vocal harmony + a picked lead guitar line that open up the sound a bit and just give it a nice little emotional boost.

I like it when a song turns to sounding like a large group of people singing the song.

2, 5, flat 6 to the key change. Or a nice 4 minor chord.

Note bending. Blue notes. Slide guitar. Whammy bar. Probably because I was raised on the blues, soul, and psychedelia

i love the "stepped sound" electro swing music has, especially when brass instruments come into play; the best example i can find is this: https://www.youtube.com/watch?v=HGbW44AEHeM

Not sure if it's a trope, per se, but I love finding good covers of my favorite songs in other languages.

Edit: When the lyrics switch into a different language on a breakdown. That's a trope, right?

I really love concept albums where the chorus of the first song makes a return in the finale. Makes it feel so conplete.

Examples, all power metal:

• Gloryhammer - Return to the kingdom of Fife
• Memories of Old - The Zeramin Game
• Marius Danielsen's Legend of Valley Doom - (all three albums listened to together)

Aeolian/Dorian mode mixture

I call them groove breaks, when the song takes a little break and just grooves for a bit.

The video version of Even Flow by Pearl Jam has a great one, Stranglehold has one, the album version of Sweet Emotions has one as the intro, so maybe not technically a break.

Track 99 on CDs

BLEGH whenever the Singer in a hardcore show says BLEGH sucker punch yo neighborhood. See Hatebreed, Terror for examples of BLEGH

I love a good "stickedibum". Which is a song ending in 4 quick drum sounds. I can't quite explain it, but for example the four very last drum notes on Alive by Pearl Jam is a stickedibum.

I love when something is sung in a lower, more calm register and towards the end when things get fast the same thing is said but with a higher octave and more energy like it's so exciting it feels like character development but for music

I think sidewinder by avenged sevenfold does what you're talking about.

Any percussive delay with loads of filtered feedback in dub or tech house

Really repetitive samples that evolve like Global Communication - The Way

I like when there's a whole change in rhythm that makes the song totally different. Like this one: https://youtu.be/ibmk1RDHaEs?feature=shared