A device or computer program that sequentially moves a pattern of notes over a range of the keyboard. The speed of the Arpeggiation is variable and the pattern can usually be varied depending on the order or relationship of the notes pressed.
Many synths can only play one note at a time (they are monophonic). With the arpeggiator on, if more than one note is pressed at a time, the synth will alternate between the notes. They also often have a range control that allows the user to tell the ynth to play additional octaves - so if the range is set to two octaves the synth will play the keys that are held down in the octave that they are played and then in the next octave up/down.
plays a pre-programmed series of notes. Arpeggio.
A device that sequentially plays a pattern of notes over a range of the keyboard. The speed of the arpeggiation and pattern of notes are variable depending on the tempo and specified/pressed notes.
A device that steps from note to note for whichever keys are pressed (or latched) in a preset or random pattern.
A device on some synthesizers that allows you to create repeated melodic or rhythmic patterns (eg. guitar 'strumming')
An arpeggiator is a tool/feature available in some hardware synthesizers and also in software form, which allows the user to automatically play alternating notes or chords based on input, most often from a MIDI controller. This electronically creates an arpeggio. Arpeggiation is also available in some sequencer software and virtual instruments.