low-frequency amplitude modulation

Tremolo is a type of low-frequency amplitude modulation .

modulation achieved by variations in volume

For the record, tremolo is modulation achieved by variations in volume, while with vibrato vibrato is achieved by variations in pitch.

the rapid repetition of one or more notes

Tremolo is the rapid repetition of one or more notes.

a rapid fluctuation of the volume of a note

in standard usage, tremolo is a rapid fluctuation of the volume of a note, while vibrato is a fluctuation in pitch.

a trembling effect

In music, tremolo (), or tremolando (), is a trembling effect.

In standard usage

in standard usage, tremolo is a rapid fluctuation of the volume of a note, while vibrato is a fluctuation in pitch.

one of the earliest guitar effects

Tremolo is one of the earliest guitar effects and was commonly found built into many ’60s tube amps, such as Fender’s Vibrolux and the Vox AC30 – and now the Vox AC30 appears in a huge variety of stompbox guises, which is why we have such rich pickings for our best tremolo pedals guide.

an amplitude modulation effect that was initially implemented on many guitar amps and still is to this day

Tremolo is an amplitude modulation effect that was initially implemented on many guitar amps and still is to this day.

a speaker set behind a rotating foam wheel with a large slot cut out to make the sound wobble in that particular way that pipe organs do

The tremolo is a speaker set behind a rotating foam wheel with a large slot cut out to make the sound wobble in that particular way that pipe organs do.

one of the oldest effects

Tremolo is one of the oldest effects and, apart from the very early electro-mechanical DeArmond tremolo, was often built in to guitar amplifiers of the 1960s and still is today.