GarageBand Digital Basic
The Digital Basic instrument is based on the ES2. This is a simple digital synthesizer sound that is useful for a range of musical styles.
Volume slider: Sets the overall volume level of the instrument.
Mix slider: Mixes two tones together.
Tuning slider: Sets the overall pitch of the instrument.
Harmonics slider: Increases or decreases the number of harmonics (overtones) in the sound. This can change the sound dramatically or subtly, so feel free to experiment.
Timbre slider: Changes the color of the sound from dark to bright.
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.
Decay slider: Makes the harmonic portion of the sound (bright) sustain for a longer time at slow values. Faster values move to the Sustain level more quickly.
Release slider: Determines the time it takes for notes to fade out after you let go of the keys on your keyboard.