First verse quiet, second verse loud
"You know: full band entry, fortissimo, while maintaining apparent volume on the vocal track." -Fountains of Wayne Hotline by Robbie Fulks Musical Trope. Trope Namer is the song "Fountains of Wayne Hotline" by Robbie Fulks, in which the term "Radical Dynamic Shift" is defined as above, poking fun at the band Fountains of Wayne for overusing it. It generally comes after a quiet first verse, where the first chorus or second verse is suddenly much louder or fuller, and is often accompanied by a squeal of feedback. Classically, this is known as "sforzando forte". Subtrope of Subdued Section. This trope is about starting soft and then getting (and staying) loud, as opposed to quiet sections in the middle or end.