GarageBand Woodwind
The Woodwind sound is sample based. It emulates the sound of wind instruments, such as flutes, clarinets, saxophones, and several other instruments from various world cultures.
Volume slider: Sets the overall volume level of the instrument.
Filter Cutoff slider: Allows more (high) or less (low) of the sound through, making it brighter or damping it.
Attack slider: Makes the sound start more slowly or quickly. A fast setting makes it sound like striking a piano key, whereas a slow setting makes it sound like bowing a violin string.
Release slider: Determines the time it takes for notes to fade out after you let go of the keys on your keyboard.