Learn how to say Tremolo correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word tremolo:
noun (plural tremolos)
a wavering effect in a musical tone, produced either by rapid reiteration of a note, by rapid repeated slight variation in the pitch of a note, or by sounding two notes of slightly different pitches to produce prominent overtones. Compare with vibrato.
a mechanism in an organ producing a tremolo effect.
(also tremolo arm) a lever on an electric guitar, used to produce a tremolo effect.
mid 18th century: from Italian