What's the noun for tremolos? Here's the word you're looking for.
tremolo
(music) A rapid repetition of the same note, or an alternation between two or more notes. It can also be intended to mean a rapid and repetitive variation in pitch for the duration of a note. It is notated by a strong diagonal bar across the note stem, or a detached bar for a set of notes (or stemless notes).
(music) A variation in the volume of a note or a chord, evoking a tremor or quiver.
(music) The device in an organ that produces a tremolo effect.
“The first movement already has the famous atmospheric opening with a horn call over tremolando strings in the original version.”
“This is consequently developed in the remainder of the exposition section and in the development where, aided by the tempo marking, it has evolved into a tremolando.”
“In discussing the different musical motives associated with ombra, he mentions tremolando, which is frequently used in Sturm und Drang music as well.”
“But he also interprets the shaking in musical terms using tremolos and trills, which can themselves be described as shakes.”
“It's a virtuoso performance full of muted notes, plucked resonance, bristling clusters, elliptical melodies, rolled chords and tremolos.”
“She ran away with the show as Liu, bringing clarity to both her deepest, most vociferous registers and to her challenging tremolos over sostenuto in the highest notes.”