From Wiktionary:
Rant (v), def. 2: To disseminate one's own opinions in a—typically—one-sided, strong manner.
Rant (n) def. 2: A wild, emotional, and sometimes incoherent articulation.

Music:

Bach, Prelude in C minor, BWV 999 - János Sebestyén

Bach, Piano Partita No. 2 In C Minor, BWV 826 - Martha Argerich

note from editing max: it was unscripted. if it was scripted i would have titled it differently