The following defines terms used in this IRP as they pertain to music composition and technology. The shape of the amplitude of a signal over time.
Attack refers to the beginning of a sound, the first part of an amplitude envelope.
Decay refers to the part of an amplitude envelope between the maximum volume of the attack and sustain. Sustain means the part at which the sound maintains a consistent volume. Release refers to the final segment, the time the sound takes to fall to zero from the sustain level after a key is released. Computer software used to support student learning. A canon in which a melody and its retrograde are played simultaneously.