Final answer:
In music, articulation and sustaining are techniques used by musicians to start and end notes and to hold them for a certain duration.
Step-by-step explanation:
In music, when someone talks about articulating and sustaining instruments, they are referring to two different techniques used by musicians on their instruments.
Articulation refers to how the musician starts and ends each note. For example, a pianist can play a note with a sharp attack, creating a crisp sound, or they can play a note with a legato touch, connecting it smoothly to the next note.
Sustaining refers to how long the musician holds a note or a series of notes. Instruments like the piano or guitar can sustain notes for a significant amount of time, while other instruments like drums have a short sustain.