Apple GarageBand User Manual download pdf (Page 16)

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Luanne Eris Fose, Ph.D.

MIDI Overdubbing

When you record instruments in a looped GarageBand track, you can continue to add to your

recording as the track loops (this technique is called

overdubbing

). To build a drum track one

drum at a time, for example, first lay down the beats for the bass drum. On the next pass,

press the key assigned to the snare drum to overdub the bass-drum sound. On subsequent

passes, add the hi-hat, tom-tom, and cymbal sounds. GarageBand can also overdub some

controller data, such as Pitch Bend and Modulation wheels on a MIDI keyboard.

Changing Software Instrument Settings

When you create a Software Instrument track, you select an instrument for the track in the New

Track dialog. You can change the instrument in the Track Info window and also add and adjust

the instrument’s effects.

To change the instrument for Software Instrument track:

1. Select the track, then click the Track Info button to open the Track Info window.

2. Select an instrument category from the list on the left, then select a track instrument from

the list on the right.

3. The output of a Software Instrument is always stereo.

Editing Software Instrument Regions

You can edit individual notes in Software Instrument regions, and can edit “controller”

information recorded when you move the pitch bend wheel or modulation wheel on your music

keyboard (most music keyboards include these two controls), or use a sustain pedal.

Editing Individual Notes in a Software Instrument Region:

You can edit individual notes of a Software Instrument region. When you view the region in the

track editor, individual notes in the region are displayed in a graphic format:

1. The left edge of the note shows the point in the timeline it starts playing.

2. The width of the note shows how long it plays.

3. The vertical position of the note shows its pitch, in relation to the piano keyboard displayed

vertically along the left edge of the track editor.

4. You can drag notes to a new starting point, resize notes to shorten or lengthen how long

they play, and drag notes up or down to a different pitch. You can also select multiple

notes and edit them at the same time.

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Apple GarageBand User Manual Page 16