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a feature of many acoustic and some high end digital pianos that permits a note to be repeated even if the key had not yet returned to its maximum vertical position.
A text-based format for exchanging sheet music
supported by a strap around the neck and shoulders, same way as a guitar.
a percussion technique, usually referring to a marimba or vibraphone. It is achieved by holding 2 mallets in each hand
an Free Software drum sequencer, available on Linux and MacOS X.